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Finding the Fourth Proportional to 79,694.58, 109,978.26 and 43,884.59

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Solution

The fourth proportional to 79,694.58, 109,978.26 and 43,884.59 is: 60,560.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,694.58 : 109,978.26 = 43,884.59 : x
  2. Step 2: Convert to fraction form
    79,694.58/109,978.26 = 43,884.59/x
  3. Step 3: Cross multiply
    79,694.58x = 109,978.26 × 43,884.59
  4. Step 4: Simplify right side
    79,694.58x = 4,826,350,134.55
  5. Step 5: Solve for x
    x = 4,826,350,134.55/79,694.58
  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.