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Finding the Fourth Proportional to 57,422.92, 86,059.42 and 29,319.21

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Solution

The fourth proportional to 57,422.92, 86,059.42 and 29,319.21 is: 43,940.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,422.92 : 86,059.42 = 29,319.21 : x
  2. Step 2: Convert to fraction form
    57,422.92/86,059.42 = 29,319.21/x
  3. Step 3: Cross multiply
    57,422.92x = 86,059.42 × 29,319.21
  4. Step 4: Simplify right side
    57,422.92x = 2,523,193,630.57
  5. Step 5: Solve for x
    x = 2,523,193,630.57/57,422.92
  6. Step 6: Final answer
    x = 43,940.54

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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.