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Finding the Fourth Proportional to 363,270.90, 544,909.44 and 126,613.20

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Solution

The fourth proportional to 363,270.90, 544,909.44 and 126,613.20 is: 189,920.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,270.90 : 544,909.44 = 126,613.20 : x
  2. Step 2: Convert to fraction form
    363,270.90/544,909.44 = 126,613.20/x
  3. Step 3: Cross multiply
    363,270.90x = 544,909.44 × 126,613.20
  4. Step 4: Simplify right side
    363,270.90x = 68,992,727,908.61
  5. Step 5: Solve for x
    x = 68,992,727,908.61/363,270.90
  6. Step 6: Final answer
    x = 189,920.88

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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.