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Finding the Fourth Proportional to 267,040.74, 400,565.13 and 87,125.34

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Solution

The fourth proportional to 267,040.74, 400,565.13 and 87,125.34 is: 130,689.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,040.74 : 400,565.13 = 87,125.34 : x
  2. Step 2: Convert to fraction form
    267,040.74/400,565.13 = 87,125.34/x
  3. Step 3: Cross multiply
    267,040.74x = 400,565.13 × 87,125.34
  4. Step 4: Simplify right side
    267,040.74x = 34,899,373,143.39
  5. Step 5: Solve for x
    x = 34,899,373,143.39/267,040.74
  6. Step 6: Final answer
    x = 130,689.32

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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.