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Finding the Fourth Proportional to 163,057.20, 244,294.20 and 137,979.60

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Solution

The fourth proportional to 163,057.20, 244,294.20 and 137,979.60 is: 206,722.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,057.20 : 244,294.20 = 137,979.60 : x
  2. Step 2: Convert to fraction form
    163,057.20/244,294.20 = 137,979.60/x
  3. Step 3: Cross multiply
    163,057.20x = 244,294.20 × 137,979.60
  4. Step 4: Simplify right side
    163,057.20x = 33,707,615,998.32
  5. Step 5: Solve for x
    x = 33,707,615,998.32/163,057.20
  6. Step 6: Final answer
    x = 206,722.65

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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.