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Finding the Fourth Proportional to 267,351.87, 401,028.10 and 80,363.37

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Solution

The fourth proportional to 267,351.87, 401,028.10 and 80,363.37 is: 120,545.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,351.87 : 401,028.10 = 80,363.37 : x
  2. Step 2: Convert to fraction form
    267,351.87/401,028.10 = 80,363.37/x
  3. Step 3: Cross multiply
    267,351.87x = 401,028.10 × 80,363.37
  4. Step 4: Simplify right side
    267,351.87x = 32,227,969,580.70
  5. Step 5: Solve for x
    x = 32,227,969,580.70/267,351.87
  6. Step 6: Final answer
    x = 120,545.14

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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.