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Finding the Fourth Proportional to 71,679.08, 98,932.19 and 45,468.12

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Solution

The fourth proportional to 71,679.08, 98,932.19 and 45,468.12 is: 62,755.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,679.08 : 98,932.19 = 45,468.12 : x
  2. Step 2: Convert to fraction form
    71,679.08/98,932.19 = 45,468.12/x
  3. Step 3: Cross multiply
    71,679.08x = 98,932.19 × 45,468.12
  4. Step 4: Simplify right side
    71,679.08x = 4,498,260,444.45
  5. Step 5: Solve for x
    x = 4,498,260,444.45/71,679.08
  6. Step 6: Final answer
    x = 62,755.55

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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.