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Finding the Fourth Proportional to 72,618.41, 108,943.10 and 25,234.92

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Solution

The fourth proportional to 72,618.41, 108,943.10 and 25,234.92 is: 37,857.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,618.41 : 108,943.10 = 25,234.92 : x
  2. Step 2: Convert to fraction form
    72,618.41/108,943.10 = 25,234.92/x
  3. Step 3: Cross multiply
    72,618.41x = 108,943.10 × 25,234.92
  4. Step 4: Simplify right side
    72,618.41x = 2,749,170,286.88
  5. Step 5: Solve for x
    x = 2,749,170,286.88/72,618.41
  6. Step 6: Final answer
    x = 37,857.76

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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.