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Finding the Fourth Proportional to 79,504.97, 109,671.17 and 49,645.13

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Solution

The fourth proportional to 79,504.97, 109,671.17 and 49,645.13 is: 68,481.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,504.97 : 109,671.17 = 49,645.13 : x
  2. Step 2: Convert to fraction form
    79,504.97/109,671.17 = 49,645.13/x
  3. Step 3: Cross multiply
    79,504.97x = 109,671.17 × 49,645.13
  4. Step 4: Simplify right side
    79,504.97x = 5,444,638,695.32
  5. Step 5: Solve for x
    x = 5,444,638,695.32/79,504.97
  6. Step 6: Final answer
    x = 68,481.74

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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.