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Finding the Fourth Proportional to 71,949.75, 107,863.06 and 27,608.32

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Solution

The fourth proportional to 71,949.75, 107,863.06 and 27,608.32 is: 41,388.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,949.75 : 107,863.06 = 27,608.32 : x
  2. Step 2: Convert to fraction form
    71,949.75/107,863.06 = 27,608.32/x
  3. Step 3: Cross multiply
    71,949.75x = 107,863.06 × 27,608.32
  4. Step 4: Simplify right side
    71,949.75x = 2,977,917,876.66
  5. Step 5: Solve for x
    x = 2,977,917,876.66/71,949.75
  6. Step 6: Final answer
    x = 41,388.86

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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.