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Finding the Fourth Proportional to 79,771.80, 110,079.09 and 43,961.97

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Solution

The fourth proportional to 79,771.80, 110,079.09 and 43,961.97 is: 60,664.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,771.80 : 110,079.09 = 43,961.97 : x
  2. Step 2: Convert to fraction form
    79,771.80/110,079.09 = 43,961.97/x
  3. Step 3: Cross multiply
    79,771.80x = 110,079.09 × 43,961.97
  4. Step 4: Simplify right side
    79,771.80x = 4,839,293,652.21
  5. Step 5: Solve for x
    x = 4,839,293,652.21/79,771.80
  6. Step 6: Final answer
    x = 60,664.22

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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.