How to calculate this?

[roaddog]

So i want to create markers but they all need to be between some range, example: create marker if distance between each other is 50 using getDistanceBetweenPoints3D

function createMissions()
	local max = max or 60
    for i, v in ipairs(clients_marker) do
		if last_markers[1] and last_markers[2] and last_markers[3] then
			max = math.floor(getDistanceBetweenPoints3D(v[1] , v[2] , v[3], last_markers[1], last_markers[2], last_markers[3]) )
        	outputChatBox(max)
		end
		if max >= 60 then
			job_markers[i] = createMarker(v[1] , v[2] , v[3]+0.2, "cylinder", 1, 255, 255, 0, 170 )
			if job_markers[i] then
				setElementData(job_markers[i], "el:jtickets", true)
				setElementData(job_markers[i], "el:jobtype", jobtype[math.random(1,3)])
				job_markers_blip[i] = createBlip(v[1] , v[2] , v[3], 0, 1, 200, 200, 0, 255)
				last_markers = {v[1] , v[2] , v[3]}
			end
		end
    end
	outputChatBox(#job_markers)
end

above is working but not for all markers, just last created marker

if you get what i mean, thank you for helping