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Finding the Fourth Proportional to 488,911.56, 733,367.96 and 133,928.66

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Solution

The fourth proportional to 488,911.56, 733,367.96 and 133,928.66 is: 200,893.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,911.56 : 733,367.96 = 133,928.66 : x
  2. Step 2: Convert to fraction form
    488,911.56/733,367.96 = 133,928.66/x
  3. Step 3: Cross multiply
    488,911.56x = 733,367.96 × 133,928.66
  4. Step 4: Simplify right side
    488,911.56x = 98,218,988,169.73
  5. Step 5: Solve for x
    x = 98,218,988,169.73/488,911.56
  6. Step 6: Final answer
    x = 200,893.16

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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.