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Finding the Fourth Proportional to 231,757.62, 347,765.60 and 125,139.32

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Solution

The fourth proportional to 231,757.62, 347,765.60 and 125,139.32 is: 187,778.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,757.62 : 347,765.60 = 125,139.32 : x
  2. Step 2: Convert to fraction form
    231,757.62/347,765.60 = 125,139.32/x
  3. Step 3: Cross multiply
    231,757.62x = 347,765.60 × 125,139.32
  4. Step 4: Simplify right side
    231,757.62x = 43,519,150,703.39
  5. Step 5: Solve for x
    x = 43,519,150,703.39/231,757.62
  6. Step 6: Final answer
    x = 187,778.73

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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.