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Finding the Fourth Proportional to 225,505,737.20, 315,027,787.60 and 225,505,737.20

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Solution

The fourth proportional to 225,505,737.20, 315,027,787.60 and 225,505,737.20 is: 315,027,787.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,505,737.20 : 315,027,787.60 = 225,505,737.20 : x
  2. Step 2: Convert to fraction form
    225,505,737.20/315,027,787.60 = 225,505,737.20/x
  3. Step 3: Cross multiply
    225,505,737.20x = 315,027,787.60 × 225,505,737.20
  4. Step 4: Simplify right side
    225,505,737.20x = 71,040,573,481,223,024
  5. Step 5: Solve for x
    x = 71,040,573,481,223,024/225,505,737.20
  6. Step 6: Final answer
    x = 315,027,787.60

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.