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Finding the Fourth Proportional to 110,951.20, 166,492.72 and 40,879.68

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Solution

The fourth proportional to 110,951.20, 166,492.72 and 40,879.68 is: 61,343.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,951.20 : 166,492.72 = 40,879.68 : x
  2. Step 2: Convert to fraction form
    110,951.20/166,492.72 = 40,879.68/x
  3. Step 3: Cross multiply
    110,951.20x = 166,492.72 × 40,879.68
  4. Step 4: Simplify right side
    110,951.20x = 6,806,169,115.93
  5. Step 5: Solve for x
    x = 6,806,169,115.93/110,951.20
  6. Step 6: Final answer
    x = 61,343.81

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.