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Finding the Fourth Proportional to 225,910,411.20, 338,865,616.90 and 225,910,411.20

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Solution

The fourth proportional to 225,910,411.20, 338,865,616.90 and 225,910,411.20 is: 338,865,616.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,910,411.20 : 338,865,616.90 = 225,910,411.20 : x
  2. Step 2: Convert to fraction form
    225,910,411.20/338,865,616.90 = 225,910,411.20/x
  3. Step 3: Cross multiply
    225,910,411.20x = 338,865,616.90 × 225,910,411.20
  4. Step 4: Simplify right side
    225,910,411.20x = 76,553,270,855,420,656
  5. Step 5: Solve for x
    x = 76,553,270,855,420,656/225,910,411.20
  6. Step 6: Final answer
    x = 338,865,616.90

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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.