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Finding the Fourth Proportional to 79,358.49, 109,517.13 and 43,550.82

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Solution

The fourth proportional to 79,358.49, 109,517.13 and 43,550.82 is: 60,101.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,358.49 : 109,517.13 = 43,550.82 : x
  2. Step 2: Convert to fraction form
    79,358.49/109,517.13 = 43,550.82/x
  3. Step 3: Cross multiply
    79,358.49x = 109,517.13 × 43,550.82
  4. Step 4: Simplify right side
    79,358.49x = 4,769,560,815.55
  5. Step 5: Solve for x
    x = 4,769,560,815.55/79,358.49
  6. Step 6: Final answer
    x = 60,101.46

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1.5x scale

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.