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Finding the Fourth Proportional to 488,614.89, 733,020.11 and 168,778.43

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Solution

The fourth proportional to 488,614.89, 733,020.11 and 168,778.43 is: 253,201.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    488,614.89 : 733,020.11 = 168,778.43 : x
  2. Step 2: Convert to fraction form
    488,614.89/733,020.11 = 168,778.43/x
  3. Step 3: Cross multiply
    488,614.89x = 733,020.11 × 168,778.43
  4. Step 4: Simplify right side
    488,614.89x = 123,717,983,324.23
  5. Step 5: Solve for x
    x = 123,717,983,324.23/488,614.89
  6. Step 6: Final answer
    x = 253,201.42

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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.