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Finding the Fourth Proportional to 79,764.81, 110,076.17 and 43,956.11

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Solution

The fourth proportional to 79,764.81, 110,076.17 and 43,956.11 is: 60,659.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,764.81 : 110,076.17 = 43,956.11 : x
  2. Step 2: Convert to fraction form
    79,764.81/110,076.17 = 43,956.11/x
  3. Step 3: Cross multiply
    79,764.81x = 110,076.17 × 43,956.11
  4. Step 4: Simplify right side
    79,764.81x = 4,838,519,466.74
  5. Step 5: Solve for x
    x = 4,838,519,466.74/79,764.81
  6. Step 6: Final answer
    x = 60,659.83

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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.