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Finding the Fourth Proportional to 215,293,825.20, 322,940,737.80 and 215,293,825.20

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Solution

The fourth proportional to 215,293,825.20, 322,940,737.80 and 215,293,825.20 is: 322,940,737.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,293,825.20 : 322,940,737.80 = 215,293,825.20 : x
  2. Step 2: Convert to fraction form
    215,293,825.20/322,940,737.80 = 215,293,825.20/x
  3. Step 3: Cross multiply
    215,293,825.20x = 322,940,737.80 × 215,293,825.20
  4. Step 4: Simplify right side
    215,293,825.20x = 69,527,146,753,872,232
  5. Step 5: Solve for x
    x = 69,527,146,753,872,232/215,293,825.20
  6. Step 6: Final answer
    x = 322,940,737.80

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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.