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Finding the Fourth Proportional to 124,780,691.30, 187,171,036.95 and 124,780,691.30

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Solution

The fourth proportional to 124,780,691.30, 187,171,036.95 and 124,780,691.30 is: 187,171,036.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    124,780,691.30 : 187,171,036.95 = 124,780,691.30 : x
  2. Step 2: Convert to fraction form
    124,780,691.30/187,171,036.95 = 124,780,691.30/x
  3. Step 3: Cross multiply
    124,780,691.30x = 187,171,036.95 × 124,780,691.30
  4. Step 4: Simplify right side
    124,780,691.30x = 23,355,331,381,958,840
  5. Step 5: Solve for x
    x = 23,355,331,381,958,840/124,780,691.30
  6. Step 6: Final answer
    x = 187,171,036.95

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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.