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Finding the Fourth Proportional to 80,369.92, 110,888.52 and 48,091.54

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Solution

The fourth proportional to 80,369.92, 110,888.52 and 48,091.54 is: 66,353.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,369.92 : 110,888.52 = 48,091.54 : x
  2. Step 2: Convert to fraction form
    80,369.92/110,888.52 = 48,091.54/x
  3. Step 3: Cross multiply
    80,369.92x = 110,888.52 × 48,091.54
  4. Step 4: Simplify right side
    80,369.92x = 5,332,799,695.12
  5. Step 5: Solve for x
    x = 5,332,799,695.12/80,369.92
  6. Step 6: Final answer
    x = 66,353.18

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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.