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Finding the Fourth Proportional to 365,711.90, 548,431.40 and 125,757.92

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Solution

The fourth proportional to 365,711.90, 548,431.40 and 125,757.92 is: 188,589.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,711.90 : 548,431.40 = 125,757.92 : x
  2. Step 2: Convert to fraction form
    365,711.90/548,431.40 = 125,757.92/x
  3. Step 3: Cross multiply
    365,711.90x = 548,431.40 × 125,757.92
  4. Step 4: Simplify right side
    365,711.90x = 68,969,593,812.16
  5. Step 5: Solve for x
    x = 68,969,593,812.16/365,711.90
  6. Step 6: Final answer
    x = 188,589.97

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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.