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Finding the Fourth Proportional to 267,103.24, 400,706.80 and 87,238.89

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Solution

The fourth proportional to 267,103.24, 400,706.80 and 87,238.89 is: 130,875.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,103.24 : 400,706.80 = 87,238.89 : x
  2. Step 2: Convert to fraction form
    267,103.24/400,706.80 = 87,238.89/x
  3. Step 3: Cross multiply
    267,103.24x = 400,706.80 × 87,238.89
  4. Step 4: Simplify right side
    267,103.24x = 34,957,216,229.35
  5. Step 5: Solve for x
    x = 34,957,216,229.35/267,103.24
  6. Step 6: Final answer
    x = 130,875.30

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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.