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Finding the Fourth Proportional to 71,369.92, 98,444.82 and 45,867.61

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Solution

The fourth proportional to 71,369.92, 98,444.82 and 45,867.61 is: 63,267.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,369.92 : 98,444.82 = 45,867.61 : x
  2. Step 2: Convert to fraction form
    71,369.92/98,444.82 = 45,867.61/x
  3. Step 3: Cross multiply
    71,369.92x = 98,444.82 × 45,867.61
  4. Step 4: Simplify right side
    71,369.92x = 4,515,428,610.28
  5. Step 5: Solve for x
    x = 4,515,428,610.28/71,369.92
  6. Step 6: Final answer
    x = 63,267.95

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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.