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Finding the Fourth Proportional to 57,061.92, 85,605.84 and 30,766.08

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Solution

The fourth proportional to 57,061.92, 85,605.84 and 30,766.08 is: 46,156.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,061.92 : 85,605.84 = 30,766.08 : x
  2. Step 2: Convert to fraction form
    57,061.92/85,605.84 = 30,766.08/x
  3. Step 3: Cross multiply
    57,061.92x = 85,605.84 × 30,766.08
  4. Step 4: Simplify right side
    57,061.92x = 2,633,756,121.91
  5. Step 5: Solve for x
    x = 2,633,756,121.91/57,061.92
  6. Step 6: Final answer
    x = 46,156.11

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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.