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Finding the Fourth Proportional to 86,481.48, 119,344.58 and 48,243.51

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Solution

The fourth proportional to 86,481.48, 119,344.58 and 48,243.51 is: 66,576.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    86,481.48 : 119,344.58 = 48,243.51 : x
  2. Step 2: Convert to fraction form
    86,481.48/119,344.58 = 48,243.51/x
  3. Step 3: Cross multiply
    86,481.48x = 119,344.58 × 48,243.51
  4. Step 4: Simplify right side
    86,481.48x = 5,757,601,438.68
  5. Step 5: Solve for x
    x = 5,757,601,438.68/86,481.48
  6. Step 6: Final answer
    x = 66,576.12

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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.