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Finding the Fourth Proportional to 57,399.87, 86,108.70 and 29,304.69

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Solution

The fourth proportional to 57,399.87, 86,108.70 and 29,304.69 is: 43,961.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,399.87 : 86,108.70 = 29,304.69 : x
  2. Step 2: Convert to fraction form
    57,399.87/86,108.70 = 29,304.69/x
  3. Step 3: Cross multiply
    57,399.87x = 86,108.70 × 29,304.69
  4. Step 4: Simplify right side
    57,399.87x = 2,523,388,759.80
  5. Step 5: Solve for x
    x = 2,523,388,759.80/57,399.87
  6. Step 6: Final answer
    x = 43,961.58

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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.