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Finding the Fourth Proportional to 225,769.20, 339,042.60 and 159,673.20

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Solution

The fourth proportional to 225,769.20, 339,042.60 and 159,673.20 is: 239,784.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,769.20 : 339,042.60 = 159,673.20 : x
  2. Step 2: Convert to fraction form
    225,769.20/339,042.60 = 159,673.20/x
  3. Step 3: Cross multiply
    225,769.20x = 339,042.60 × 159,673.20
  4. Step 4: Simplify right side
    225,769.20x = 54,136,016,878.32
  5. Step 5: Solve for x
    x = 54,136,016,878.32/225,769.20
  6. Step 6: Final answer
    x = 239,784.78

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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.