Please help me figure this one out!

Two fire-lookout stations are 190 miles apart, with station a directly south of station b. both stations spot a fire. the bearing of the fire from station a is upper n 55 degrees upper e and the bearing of the fire from station b is upper s 60 degrees e. how far, to the nearest tenth of a mile, is the fire from each lookout station?

What other information do you need to prove triangle dac=bca by asa

Explain why the factor 1.5 is broke. into two numbers in the model.