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Finding the Fourth Proportional to 124,815,983.40, 186,972,032.70 and 124,815,983.40

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Solution

The fourth proportional to 124,815,983.40, 186,972,032.70 and 124,815,983.40 is: 186,972,032.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,815,983.40 : 186,972,032.70 = 124,815,983.40 : x
  2. Step 2: Convert to fraction form
    124,815,983.40/186,972,032.70 = 124,815,983.40/x
  3. Step 3: Cross multiply
    124,815,983.40x = 186,972,032.70 × 124,815,983.40
  4. Step 4: Simplify right side
    124,815,983.40x = 23,337,098,129,747,456
  5. Step 5: Solve for x
    x = 23,337,098,129,747,456/124,815,983.40
  6. Step 6: Final answer
    x = 186,972,032.70

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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.