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Finding the Fourth Proportional to 79,879.56, 110,214.11 and 48,826.97

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Solution

The fourth proportional to 79,879.56, 110,214.11 and 48,826.97 is: 67,369.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,879.56 : 110,214.11 = 48,826.97 : x
  2. Step 2: Convert to fraction form
    79,879.56/110,214.11 = 48,826.97/x
  3. Step 3: Cross multiply
    79,879.56x = 110,214.11 × 48,826.97
  4. Step 4: Simplify right side
    79,879.56x = 5,381,420,247.34
  5. Step 5: Solve for x
    x = 5,381,420,247.34/79,879.56
  6. Step 6: Final answer
    x = 67,369.18

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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.