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Finding the Fourth Proportional to 159,728.44, 239,614.26 and 54,519.16

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Solution

The fourth proportional to 159,728.44, 239,614.26 and 54,519.16 is: 81,786.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,728.44 : 239,614.26 = 54,519.16 : x
  2. Step 2: Convert to fraction form
    159,728.44/239,614.26 = 54,519.16/x
  3. Step 3: Cross multiply
    159,728.44x = 239,614.26 × 54,519.16
  4. Step 4: Simplify right side
    159,728.44x = 13,063,568,179.22
  5. Step 5: Solve for x
    x = 13,063,568,179.22/159,728.44
  6. Step 6: Final answer
    x = 81,786.11

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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.