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Finding the Fourth Proportional to 79,793.21, 110,112.66 and 43,982.43

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Solution

The fourth proportional to 79,793.21, 110,112.66 and 43,982.43 is: 60,694.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,793.21 : 110,112.66 = 43,982.43 : x
  2. Step 2: Convert to fraction form
    79,793.21/110,112.66 = 43,982.43/x
  3. Step 3: Cross multiply
    79,793.21x = 110,112.66 × 43,982.43
  4. Step 4: Simplify right side
    79,793.21x = 4,843,022,360.56
  5. Step 5: Solve for x
    x = 4,843,022,360.56/79,793.21
  6. Step 6: Final answer
    x = 60,694.67

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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.