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Finding the Fourth Proportional to 267,211.60, 401,044.20 and 109,553.20

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Solution

The fourth proportional to 267,211.60, 401,044.20 and 109,553.20 is: 164,422.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,211.60 : 401,044.20 = 109,553.20 : x
  2. Step 2: Convert to fraction form
    267,211.60/401,044.20 = 109,553.20/x
  3. Step 3: Cross multiply
    267,211.60x = 401,044.20 × 109,553.20
  4. Step 4: Simplify right side
    267,211.60x = 43,935,675,451.44
  5. Step 5: Solve for x
    x = 43,935,675,451.44/267,211.60
  6. Step 6: Final answer
    x = 164,422.78

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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.