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Finding the Fourth Proportional to 82,545.67, 123,621.67 and 45,049.56

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Solution

The fourth proportional to 82,545.67, 123,621.67 and 45,049.56 is: 67,466.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,545.67 : 123,621.67 = 45,049.56 : x
  2. Step 2: Convert to fraction form
    82,545.67/123,621.67 = 45,049.56/x
  3. Step 3: Cross multiply
    82,545.67x = 123,621.67 × 45,049.56
  4. Step 4: Simplify right side
    82,545.67x = 5,569,101,839.97
  5. Step 5: Solve for x
    x = 5,569,101,839.97/82,545.67
  6. Step 6: Final answer
    x = 67,466.92

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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.