\(117504\div x\div72=48\)
\(117504\div x=48\times72\)
\(117504\div x=3456\)
\(x=117504\div3456\)
\(x=34.\)
117504 : x : 72 = 48
117504 : x = 48 * 72
117504 : x = 3456
x= 117504 : 3456
x= 34
117504:x:72=48
117504:x=48×72
117504:x=3456
x=117504:3456
x=34
vậy x=34
117504:x=48.72=3456
x=117504:3456=34