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Finding the Fourth Proportional to 172,481.33, 258,765.05 and 60,163.16

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Solution

The fourth proportional to 172,481.33, 258,765.05 and 60,163.16 is: 90,259.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,481.33 : 258,765.05 = 60,163.16 : x
  2. Step 2: Convert to fraction form
    172,481.33/258,765.05 = 60,163.16/x
  3. Step 3: Cross multiply
    172,481.33x = 258,765.05 × 60,163.16
  4. Step 4: Simplify right side
    172,481.33x = 15,568,121,510.92
  5. Step 5: Solve for x
    x = 15,568,121,510.92/172,481.33
  6. Step 6: Final answer
    x = 90,259.75

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.