Finding the Fourth Proportional to 139,888,530.16, 193,046,357.57 and 77,163,213.20
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Solution
The fourth proportional to 139,888,530.16, 193,046,357.57 and 77,163,213.20 is: 106,485,336.79
Step by Step Solution
- Step 1: Write the proportion equation
139,888,530.16 : 193,046,357.57 = 77,163,213.20 : x - Step 2: Convert to fraction form
139,888,530.16/193,046,357.57 = 77,163,213.20/x - Step 3: Cross multiply
139,888,530.16x = 193,046,357.57 × 77,163,213.20 - Step 4: Simplify right side
139,888,530.16x = 14,896,077,246,657,344 - Step 5: Solve for x
x = 14,896,077,246,657,344/139,888,530.16 - Step 6: Final answer
x = 106,485,336.79
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Why These Related Problems?
These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.