If A : B : C = 3 : 4 : 7, then what is the ratio of (A / B) : (B / C) : (C / A)?  Pick one.
A) 63 : 48 : 196  B) 63 : 48 : 18  C) 63 : 48 : 1928  D) 63 : 48 : 1918  E) 63 : 48 :121
Hint: If a = kb for some constant k, then we can say that a is directly proportional to b.   63 : 48 : 196 : B : C = 3 : 4 : 7   63 : 48 : 196ssume, 63 : 48 : 196 = 3 k, B = 4 k, C = 7 k   Therefore,   63 : 48 : 196	=	(3k)	,	B	=	(4k)	,	C	=	(7k)   B	(4k)	C	(7k)	63 : 48 : 196	(3k)   63 : 48 : 196	=	(3)	,	B	=	(4)	,	C	=	(7)   B	(4)	C	(7)	63 : 48 : 196	(3)   L.C.M of 3, 4, 7 is 84   (3 x 84) / 4 = 63   (4 x 84) / 7 = 48   (7 x 84) / 3 = 196\   Correct option :63 : 48 : 196
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If A : B : C = 3 : 4 : 7, then what is the ratio of (A / B) : (B / C) : (C / A)?