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Finding the Fourth Proportional to 267,680.70, 401,521.05 and 204,695.10

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Solution

The fourth proportional to 267,680.70, 401,521.05 and 204,695.10 is: 307,042.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,680.70 : 401,521.05 = 204,695.10 : x
  2. Step 2: Convert to fraction form
    267,680.70/401,521.05 = 204,695.10/x
  3. Step 3: Cross multiply
    267,680.70x = 401,521.05 × 204,695.10
  4. Step 4: Simplify right side
    267,680.70x = 82,189,391,481.86
  5. Step 5: Solve for x
    x = 82,189,391,481.86/267,680.70
  6. Step 6: Final answer
    x = 307,042.65

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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.