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Finding the Fourth Proportional to 171,982.73, 257,879.37 and 92,114.30

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Solution

The fourth proportional to 171,982.73, 257,879.37 and 92,114.30 is: 138,120.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,982.73 : 257,879.37 = 92,114.30 : x
  2. Step 2: Convert to fraction form
    171,982.73/257,879.37 = 92,114.30/x
  3. Step 3: Cross multiply
    171,982.73x = 257,879.37 × 92,114.30
  4. Step 4: Simplify right side
    171,982.73x = 23,754,377,651.99
  5. Step 5: Solve for x
    x = 23,754,377,651.99/171,982.73
  6. Step 6: Final answer
    x = 138,120.72

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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.