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Finding the Fourth Proportional to 267,102.90, 400,652.84 and 67,422.47

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Solution

The fourth proportional to 267,102.90, 400,652.84 and 67,422.47 is: 101,133.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,102.90 : 400,652.84 = 67,422.47 : x
  2. Step 2: Convert to fraction form
    267,102.90/400,652.84 = 67,422.47/x
  3. Step 3: Cross multiply
    267,102.90x = 400,652.84 × 67,422.47
  4. Step 4: Simplify right side
    267,102.90x = 27,013,002,250.61
  5. Step 5: Solve for x
    x = 27,013,002,250.61/267,102.90
  6. Step 6: Final answer
    x = 101,133.32

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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.