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Finding the Fourth Proportional to 263,832.80, 396,040.80 and 164,105.60

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Solution

The fourth proportional to 263,832.80, 396,040.80 and 164,105.60 is: 246,339.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,832.80 : 396,040.80 = 164,105.60 : x
  2. Step 2: Convert to fraction form
    263,832.80/396,040.80 = 164,105.60/x
  3. Step 3: Cross multiply
    263,832.80x = 396,040.80 × 164,105.60
  4. Step 4: Simplify right side
    263,832.80x = 64,992,513,108.48
  5. Step 5: Solve for x
    x = 64,992,513,108.48/263,832.80
  6. Step 6: Final answer
    x = 246,339.78

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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.