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Finding the Fourth Proportional to 337,306.85, 505,960.28 and 126,991.97

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Solution

The fourth proportional to 337,306.85, 505,960.28 and 126,991.97 is: 190,487.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    337,306.85 : 505,960.28 = 126,991.97 : x
  2. Step 2: Convert to fraction form
    337,306.85/505,960.28 = 126,991.97/x
  3. Step 3: Cross multiply
    337,306.85x = 505,960.28 × 126,991.97
  4. Step 4: Simplify right side
    337,306.85x = 64,252,892,063.99
  5. Step 5: Solve for x
    x = 64,252,892,063.99/337,306.85
  6. Step 6: Final answer
    x = 190,487.96

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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.