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Finding the Fourth Proportional to 231,338.60, 347,007.90 and 195,909.20

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Solution

The fourth proportional to 231,338.60, 347,007.90 and 195,909.20 is: 293,863.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,338.60 : 347,007.90 = 195,909.20 : x
  2. Step 2: Convert to fraction form
    231,338.60/347,007.90 = 195,909.20/x
  3. Step 3: Cross multiply
    231,338.60x = 347,007.90 × 195,909.20
  4. Step 4: Simplify right side
    231,338.60x = 67,982,040,082.68
  5. Step 5: Solve for x
    x = 67,982,040,082.68/231,338.60
  6. Step 6: Final answer
    x = 293,863.80

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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.