a/(1/2) = b/ (1,5) = c/ (1/9) = 174 / (1/2+1/5+1/9)

mmc (2,5,9) = 90

a/(45/90) = b/ (18/90) = c / (10/90) = 174 / (45/90+18/90+10/90 ) = 174/73 = 2,38

a/45 = 2,38 => 2,38 * 45 = 107,10

b/18 = 2,38 * 18 = 42,84

c/10 = 2,38 * 10 = 23,8