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Finding the Fourth Proportional to 267,243.62, 400,898.43 and 87,324.80

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Solution

The fourth proportional to 267,243.62, 400,898.43 and 87,324.80 is: 130,997.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,243.62 : 400,898.43 = 87,324.80 : x
  2. Step 2: Convert to fraction form
    267,243.62/400,898.43 = 87,324.80/x
  3. Step 3: Cross multiply
    267,243.62x = 400,898.43 × 87,324.80
  4. Step 4: Simplify right side
    267,243.62x = 35,008,373,215.57
  5. Step 5: Solve for x
    x = 35,008,373,215.57/267,243.62
  6. Step 6: Final answer
    x = 130,997.98

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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.