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Finding the Fourth Proportional to 347,630.20, 521,502.90 and 148,046.20

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Solution

The fourth proportional to 347,630.20, 521,502.90 and 148,046.20 is: 222,093.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    347,630.20 : 521,502.90 = 148,046.20 : x
  2. Step 2: Convert to fraction form
    347,630.20/521,502.90 = 148,046.20/x
  3. Step 3: Cross multiply
    347,630.20x = 521,502.90 × 148,046.20
  4. Step 4: Simplify right side
    347,630.20x = 77,206,522,633.98
  5. Step 5: Solve for x
    x = 77,206,522,633.98/347,630.20
  6. Step 6: Final answer
    x = 222,093.83

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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.