Finding the Fourth Proportional to 88,305,868.36, 121,859,947.59 and 48,613,076.49
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Solution
The fourth proportional to 88,305,868.36, 121,859,947.59 and 48,613,076.49 is: 67,084,861.55
Step by Step Solution
- Step 1: Write the proportion equation
88,305,868.36 : 121,859,947.59 = 48,613,076.49 : x - Step 2: Convert to fraction form
88,305,868.36/121,859,947.59 = 48,613,076.49/x - Step 3: Cross multiply
88,305,868.36x = 121,859,947.59 × 48,613,076.49 - Step 4: Simplify right side
88,305,868.36x = 5,923,986,953,260,062 - Step 5: Solve for x
x = 5,923,986,953,260,062/88,305,868.36 - Step 6: Final answer
x = 67,084,861.55
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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.