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Finding the Fourth Proportional to 231,909.80, 347,346.30 and 226,725.80

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Solution

The fourth proportional to 231,909.80, 347,346.30 and 226,725.80 is: 339,581.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,909.80 : 347,346.30 = 226,725.80 : x
  2. Step 2: Convert to fraction form
    231,909.80/347,346.30 = 226,725.80/x
  3. Step 3: Cross multiply
    231,909.80x = 347,346.30 × 226,725.80
  4. Step 4: Simplify right side
    231,909.80x = 78,752,367,744.54
  5. Step 5: Solve for x
    x = 78,752,367,744.54/231,909.80
  6. Step 6: Final answer
    x = 339,581.89

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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.