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Finding the Fourth Proportional to 82,944,061.80, 124,416,092.70 and 75,007,876.20

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Solution

The fourth proportional to 82,944,061.80, 124,416,092.70 and 75,007,876.20 is: 112,511,814.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,944,061.80 : 124,416,092.70 = 75,007,876.20 : x
  2. Step 2: Convert to fraction form
    82,944,061.80/124,416,092.70 = 75,007,876.20/x
  3. Step 3: Cross multiply
    82,944,061.80x = 124,416,092.70 × 75,007,876.20
  4. Step 4: Simplify right side
    82,944,061.80x = 9,332,186,878,529,324
  5. Step 5: Solve for x
    x = 9,332,186,878,529,324/82,944,061.80
  6. Step 6: Final answer
    x = 112,511,814.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.