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Finding the Fourth Proportional to 373,864.85, 515,930.87 and 204,098.97

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Solution

The fourth proportional to 373,864.85, 515,930.87 and 204,098.97 is: 281,655.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    373,864.85 : 515,930.87 = 204,098.97 : x
  2. Step 2: Convert to fraction form
    373,864.85/515,930.87 = 204,098.97/x
  3. Step 3: Cross multiply
    373,864.85x = 515,930.87 × 204,098.97
  4. Step 4: Simplify right side
    373,864.85x = 105,300,960,455.14
  5. Step 5: Solve for x
    x = 105,300,960,455.14/373,864.85
  6. Step 6: Final answer
    x = 281,655.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.