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Finding the Fourth Proportional to 488,909.57, 733,364.96 and 133,926.66

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Solution

The fourth proportional to 488,909.57, 733,364.96 and 133,926.66 is: 200,890.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,909.57 : 733,364.96 = 133,926.66 : x
  2. Step 2: Convert to fraction form
    488,909.57/733,364.96 = 133,926.66/x
  3. Step 3: Cross multiply
    488,909.57x = 733,364.96 × 133,926.66
  4. Step 4: Simplify right side
    488,909.57x = 98,217,118,984.20
  5. Step 5: Solve for x
    x = 98,217,118,984.20/488,909.57
  6. Step 6: Final answer
    x = 200,890.16

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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.