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Finding the Fourth Proportional to 120,551.45, 180,472.44 and 80,471.02

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Solution

The fourth proportional to 120,551.45, 180,472.44 and 80,471.02 is: 120,469.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,551.45 : 180,472.44 = 80,471.02 : x
  2. Step 2: Convert to fraction form
    120,551.45/180,472.44 = 80,471.02/x
  3. Step 3: Cross multiply
    120,551.45x = 180,472.44 × 80,471.02
  4. Step 4: Simplify right side
    120,551.45x = 14,522,800,426.33
  5. Step 5: Solve for x
    x = 14,522,800,426.33/120,551.45
  6. Step 6: Final answer
    x = 120,469.73

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.