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Finding the Fourth Proportional to 166,771.91, 250,081.92 and 71,957.18

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Solution

The fourth proportional to 166,771.91, 250,081.92 and 71,957.18 is: 107,903.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,771.91 : 250,081.92 = 71,957.18 : x
  2. Step 2: Convert to fraction form
    166,771.91/250,081.92 = 71,957.18/x
  3. Step 3: Cross multiply
    166,771.91x = 250,081.92 × 71,957.18
  4. Step 4: Simplify right side
    166,771.91x = 17,995,188,481.78
  5. Step 5: Solve for x
    x = 17,995,188,481.78/166,771.91
  6. Step 6: Final answer
    x = 107,903.00

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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.