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Finding the Fourth Proportional to 68,469.96, 94,458.48 and 40,162.92

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Solution

The fourth proportional to 68,469.96, 94,458.48 and 40,162.92 is: 55,407.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,469.96 : 94,458.48 = 40,162.92 : x
  2. Step 2: Convert to fraction form
    68,469.96/94,458.48 = 40,162.92/x
  3. Step 3: Cross multiply
    68,469.96x = 94,458.48 × 40,162.92
  4. Step 4: Simplify right side
    68,469.96x = 3,793,728,375.56
  5. Step 5: Solve for x
    x = 3,793,728,375.56/68,469.96
  6. Step 6: Final answer
    x = 55,407.19

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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.