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Finding the Fourth Proportional to 68,081.25, 93,944.91 and 37,861.68

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Solution

The fourth proportional to 68,081.25, 93,944.91 and 37,861.68 is: 52,245.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,081.25 : 93,944.91 = 37,861.68 : x
  2. Step 2: Convert to fraction form
    68,081.25/93,944.91 = 37,861.68/x
  3. Step 3: Cross multiply
    68,081.25x = 93,944.91 × 37,861.68
  4. Step 4: Simplify right side
    68,081.25x = 3,556,912,120.05
  5. Step 5: Solve for x
    x = 3,556,912,120.05/68,081.25
  6. Step 6: Final answer
    x = 52,245.11

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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.