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Finding the Fourth Proportional to 79,766.94, 110,079.10 and 43,958.23

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Solution

The fourth proportional to 79,766.94, 110,079.10 and 43,958.23 is: 60,662.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,766.94 : 110,079.10 = 43,958.23 : x
  2. Step 2: Convert to fraction form
    79,766.94/110,079.10 = 43,958.23/x
  3. Step 3: Cross multiply
    79,766.94x = 110,079.10 × 43,958.23
  4. Step 4: Simplify right side
    79,766.94x = 4,838,882,286.10
  5. Step 5: Solve for x
    x = 4,838,882,286.10/79,766.94
  6. Step 6: Final answer
    x = 60,662.76

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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.