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Finding the Fourth Proportional to 267,337.28, 400,921.13 and 87,382.01

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Solution

The fourth proportional to 267,337.28, 400,921.13 and 87,382.01 is: 131,045.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,337.28 : 400,921.13 = 87,382.01 : x
  2. Step 2: Convert to fraction form
    267,337.28/400,921.13 = 87,382.01/x
  3. Step 3: Cross multiply
    267,337.28x = 400,921.13 × 87,382.01
  4. Step 4: Simplify right side
    267,337.28x = 35,033,294,190.87
  5. Step 5: Solve for x
    x = 35,033,294,190.87/267,337.28
  6. Step 6: Final answer
    x = 131,045.30

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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.