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Finding the Fourth Proportional to 179,321.88, 268,318.45 and 131,971.97

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Solution

The fourth proportional to 179,321.88, 268,318.45 and 131,971.97 is: 197,469.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,321.88 : 268,318.45 = 131,971.97 : x
  2. Step 2: Convert to fraction form
    179,321.88/268,318.45 = 131,971.97/x
  3. Step 3: Cross multiply
    179,321.88x = 268,318.45 × 131,971.97
  4. Step 4: Simplify right side
    179,321.88x = 35,410,514,433.85
  5. Step 5: Solve for x
    x = 35,410,514,433.85/179,321.88
  6. Step 6: Final answer
    x = 197,469.01

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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.