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Finding the Fourth Proportional to 71,348.28, 98,451.28 and 41,134.72

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Solution

The fourth proportional to 71,348.28, 98,451.28 and 41,134.72 is: 56,760.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,348.28 : 98,451.28 = 41,134.72 : x
  2. Step 2: Convert to fraction form
    71,348.28/98,451.28 = 41,134.72/x
  3. Step 3: Cross multiply
    71,348.28x = 98,451.28 × 41,134.72
  4. Step 4: Simplify right side
    71,348.28x = 4,049,765,836.44
  5. Step 5: Solve for x
    x = 4,049,765,836.44/71,348.28
  6. Step 6: Final answer
    x = 56,760.53

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.