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Finding the Fourth Proportional to 367,672.20, 551,508.30 and 199,273.20

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Solution

The fourth proportional to 367,672.20, 551,508.30 and 199,273.20 is: 298,909.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,672.20 : 551,508.30 = 199,273.20 : x
  2. Step 2: Convert to fraction form
    367,672.20/551,508.30 = 199,273.20/x
  3. Step 3: Cross multiply
    367,672.20x = 551,508.30 × 199,273.20
  4. Step 4: Simplify right side
    367,672.20x = 109,900,823,767.56
  5. Step 5: Solve for x
    x = 109,900,823,767.56/367,672.20
  6. Step 6: Final answer
    x = 298,909.80

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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.