Finding the Fourth Proportional to 113,783,897.97, 157,022,192.54 and 61,572,927.99
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Solution
The fourth proportional to 113,783,897.97, 157,022,192.54 and 61,572,927.99 is: 84,970,864.30
Step by Step Solution
- Step 1: Write the proportion equation
113,783,897.97 : 157,022,192.54 = 61,572,927.99 : x - Step 2: Convert to fraction form
113,783,897.97/157,022,192.54 = 61,572,927.99/x - Step 3: Cross multiply
113,783,897.97x = 157,022,192.54 × 61,572,927.99 - Step 4: Simplify right side
113,783,897.97x = 9,668,316,153,789,470 - Step 5: Solve for x
x = 9,668,316,153,789,470/113,783,897.97 - Step 6: Final answer
x = 84,970,864.30
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1.5x scale
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.