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Finding the Fourth Proportional to 366,691.57, 550,188.70 and 198,013.26

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Solution

The fourth proportional to 366,691.57, 550,188.70 and 198,013.26 is: 297,101.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    366,691.57 : 550,188.70 = 198,013.26 : x
  2. Step 2: Convert to fraction form
    366,691.57/550,188.70 = 198,013.26/x
  3. Step 3: Cross multiply
    366,691.57x = 550,188.70 × 198,013.26
  4. Step 4: Simplify right side
    366,691.57x = 108,944,659,670.34
  5. Step 5: Solve for x
    x = 108,944,659,670.34/366,691.57
  6. Step 6: Final answer
    x = 297,101.62

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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.