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Finding the Fourth Proportional to 267,163.66, 400,628.04 and 80,131.42

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Solution

The fourth proportional to 267,163.66, 400,628.04 and 80,131.42 is: 120,161.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,163.66 : 400,628.04 = 80,131.42 : x
  2. Step 2: Convert to fraction form
    267,163.66/400,628.04 = 80,131.42/x
  3. Step 3: Cross multiply
    267,163.66x = 400,628.04 × 80,131.42
  4. Step 4: Simplify right side
    267,163.66x = 32,102,893,737.02
  5. Step 5: Solve for x
    x = 32,102,893,737.02/267,163.66
  6. Step 6: Final answer
    x = 120,161.90

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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.