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Finding the Fourth Proportional to 171,942.60, 258,108.30 and 132,673.80

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Solution

The fourth proportional to 171,942.60, 258,108.30 and 132,673.80 is: 199,160.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,942.60 : 258,108.30 = 132,673.80 : x
  2. Step 2: Convert to fraction form
    171,942.60/258,108.30 = 132,673.80/x
  3. Step 3: Cross multiply
    171,942.60x = 258,108.30 × 132,673.80
  4. Step 4: Simplify right side
    171,942.60x = 34,244,208,972.54
  5. Step 5: Solve for x
    x = 34,244,208,972.54/171,942.60
  6. Step 6: Final answer
    x = 199,160.70

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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.