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Finding the Fourth Proportional to 171,872.60, 258,003.30 and 132,603.80

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Solution

The fourth proportional to 171,872.60, 258,003.30 and 132,603.80 is: 199,055.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,872.60 : 258,003.30 = 132,603.80 : x
  2. Step 2: Convert to fraction form
    171,872.60/258,003.30 = 132,603.80/x
  3. Step 3: Cross multiply
    171,872.60x = 258,003.30 × 132,603.80
  4. Step 4: Simplify right side
    171,872.60x = 34,212,217,992.54
  5. Step 5: Solve for x
    x = 34,212,217,992.54/171,872.60
  6. Step 6: Final answer
    x = 199,055.68

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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.