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Finding the Fourth Proportional to 171,933.20, 257,899.80 and 162,747.80

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Solution

The fourth proportional to 171,933.20, 257,899.80 and 162,747.80 is: 244,121.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,933.20 : 257,899.80 = 162,747.80 : x
  2. Step 2: Convert to fraction form
    171,933.20/257,899.80 = 162,747.80/x
  3. Step 3: Cross multiply
    171,933.20x = 257,899.80 × 162,747.80
  4. Step 4: Simplify right side
    171,933.20x = 41,972,625,070.44
  5. Step 5: Solve for x
    x = 41,972,625,070.44/171,933.20
  6. Step 6: Final answer
    x = 244,121.70

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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.