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Finding the Fourth Proportional to 115,202.87, 172,787.90 and 36,306.84

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Solution

The fourth proportional to 115,202.87, 172,787.90 and 36,306.84 is: 54,455.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,202.87 : 172,787.90 = 36,306.84 : x
  2. Step 2: Convert to fraction form
    115,202.87/172,787.90 = 36,306.84/x
  3. Step 3: Cross multiply
    115,202.87x = 172,787.90 × 36,306.84
  4. Step 4: Simplify right side
    115,202.87x = 6,273,383,309.88
  5. Step 5: Solve for x
    x = 6,273,383,309.88/115,202.87
  6. Step 6: Final answer
    x = 54,455.10

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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.