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Finding the Fourth Proportional to 101,231.85, 139,693.82 and 60,958.65

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Solution

The fourth proportional to 101,231.85, 139,693.82 and 60,958.65 is: 84,119.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,231.85 : 139,693.82 = 60,958.65 : x
  2. Step 2: Convert to fraction form
    101,231.85/139,693.82 = 60,958.65/x
  3. Step 3: Cross multiply
    101,231.85x = 139,693.82 × 60,958.65
  4. Step 4: Simplify right side
    101,231.85x = 8,515,546,680.54
  5. Step 5: Solve for x
    x = 8,515,546,680.54/101,231.85
  6. Step 6: Final answer
    x = 84,119.24

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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.