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Finding the Fourth Proportional to 171,843.80, 257,765.70 and 160,179.80

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Solution

The fourth proportional to 171,843.80, 257,765.70 and 160,179.80 is: 240,269.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,843.80 : 257,765.70 = 160,179.80 : x
  2. Step 2: Convert to fraction form
    171,843.80/257,765.70 = 160,179.80/x
  3. Step 3: Cross multiply
    171,843.80x = 257,765.70 × 160,179.80
  4. Step 4: Simplify right side
    171,843.80x = 41,288,858,272.86
  5. Step 5: Solve for x
    x = 41,288,858,272.86/171,843.80
  6. Step 6: Final answer
    x = 240,269.70

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1.5x scale

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.