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Finding the Fourth Proportional to 79,694.04, 109,978.49 and 43,884.19

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Solution

The fourth proportional to 79,694.04, 109,978.49 and 43,884.19 is: 60,560.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,694.04 : 109,978.49 = 43,884.19 : x
  2. Step 2: Convert to fraction form
    79,694.04/109,978.49 = 43,884.19/x
  3. Step 3: Cross multiply
    79,694.04x = 109,978.49 × 43,884.19
  4. Step 4: Simplify right side
    79,694.04x = 4,826,317,198.26
  5. Step 5: Solve for x
    x = 4,826,317,198.26/79,694.04
  6. Step 6: Final answer
    x = 60,560.58

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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.