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Finding the Fourth Proportional to 488,909.10, 733,363.65 and 133,922.55

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Solution

The fourth proportional to 488,909.10, 733,363.65 and 133,922.55 is: 200,883.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,909.10 : 733,363.65 = 133,922.55 : x
  2. Step 2: Convert to fraction form
    488,909.10/733,363.65 = 133,922.55/x
  3. Step 3: Cross multiply
    488,909.10x = 733,363.65 × 133,922.55
  4. Step 4: Simplify right side
    488,909.10x = 98,213,930,085.31
  5. Step 5: Solve for x
    x = 98,213,930,085.31/488,909.10
  6. Step 6: Final answer
    x = 200,883.83

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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.