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Finding the Fourth Proportional to 267,748.32, 401,625.36 and 80,761.44

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Solution

The fourth proportional to 267,748.32, 401,625.36 and 80,761.44 is: 121,143.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,748.32 : 401,625.36 = 80,761.44 : x
  2. Step 2: Convert to fraction form
    267,748.32/401,625.36 = 80,761.44/x
  3. Step 3: Cross multiply
    267,748.32x = 401,625.36 × 80,761.44
  4. Step 4: Simplify right side
    267,748.32x = 32,435,842,414.12
  5. Step 5: Solve for x
    x = 32,435,842,414.12/267,748.32
  6. Step 6: Final answer
    x = 121,143.03

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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.