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Finding the Fourth Proportional to 57,529, 86,195.22 and 40,806.28

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Solution

The fourth proportional to 57,529, 86,195.22 and 40,806.28 is: 61,139.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,529 : 86,195.22 = 40,806.28 : x
  2. Step 2: Convert to fraction form
    57,529/86,195.22 = 40,806.28/x
  3. Step 3: Cross multiply
    57,529x = 86,195.22 × 40,806.28
  4. Step 4: Simplify right side
    57,529x = 3,517,306,281.98
  5. Step 5: Solve for x
    x = 3,517,306,281.98/57,529
  6. Step 6: Final answer
    x = 61,139.71

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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.