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Finding the Fourth Proportional to 74,481.29, 102,773.48 and 43,836.15

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Solution

The fourth proportional to 74,481.29, 102,773.48 and 43,836.15 is: 60,487.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,481.29 : 102,773.48 = 43,836.15 : x
  2. Step 2: Convert to fraction form
    74,481.29/102,773.48 = 43,836.15/x
  3. Step 3: Cross multiply
    74,481.29x = 102,773.48 × 43,836.15
  4. Step 4: Simplify right side
    74,481.29x = 4,505,193,466.12
  5. Step 5: Solve for x
    x = 4,505,193,466.12/74,481.29
  6. Step 6: Final answer
    x = 60,487.59

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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.