( a , b , c ) d.p . ( 5 , 6 , 10 ) = a / 5 = b / 6 = c / 10
( c.d.e ) d . p ( 3 , 8 , 12 = c / 3 = d / 8 = e / 12
a / 15 = b / 18 = c / 30 = d / 80 = e / 120 = k => a = 15k , b = 18k , c = 30k , d = 80 k , e = 120 k
a + b + c + d = 200
263k = 200 => k = 0,76
a = 0 , 76 * 15 = 11 , 4
b = 13 , 68
c = 22.8
d = 60, 8
e = 91.2