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Finding the Fourth Proportional to 79,517.58, 109,736.28 and 43,708.50

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Solution

The fourth proportional to 79,517.58, 109,736.28 and 43,708.50 is: 60,318.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,517.58 : 109,736.28 = 43,708.50 : x
  2. Step 2: Convert to fraction form
    79,517.58/109,736.28 = 43,708.50/x
  3. Step 3: Cross multiply
    79,517.58x = 109,736.28 × 43,708.50
  4. Step 4: Simplify right side
    79,517.58x = 4,796,408,194.38
  5. Step 5: Solve for x
    x = 4,796,408,194.38/79,517.58
  6. Step 6: Final answer
    x = 60,318.84

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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.