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Finding the Fourth Proportional to 218,004.80, 326,575.20 and 192,027.20

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Solution

The fourth proportional to 218,004.80, 326,575.20 and 192,027.20 is: 287,660.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,004.80 : 326,575.20 = 192,027.20 : x
  2. Step 2: Convert to fraction form
    218,004.80/326,575.20 = 192,027.20/x
  3. Step 3: Cross multiply
    218,004.80x = 326,575.20 × 192,027.20
  4. Step 4: Simplify right side
    218,004.80x = 62,711,321,245.44
  5. Step 5: Solve for x
    x = 62,711,321,245.44/218,004.80
  6. Step 6: Final answer
    x = 287,660.28

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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.