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Finding the Fourth Proportional to 267,387.63, 401,170.77 and 87,481.29

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Solution

The fourth proportional to 267,387.63, 401,170.77 and 87,481.29 is: 131,251.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,387.63 : 401,170.77 = 87,481.29 : x
  2. Step 2: Convert to fraction form
    267,387.63/401,170.77 = 87,481.29/x
  3. Step 3: Cross multiply
    267,387.63x = 401,170.77 × 87,481.29
  4. Step 4: Simplify right side
    267,387.63x = 35,094,936,469.89
  5. Step 5: Solve for x
    x = 35,094,936,469.89/267,387.63
  6. Step 6: Final answer
    x = 131,251.16

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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.