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Finding the Fourth Proportional to 137,727.20, 206,590.80 and 95,736.80

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Solution

The fourth proportional to 137,727.20, 206,590.80 and 95,736.80 is: 143,605.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,727.20 : 206,590.80 = 95,736.80 : x
  2. Step 2: Convert to fraction form
    137,727.20/206,590.80 = 95,736.80/x
  3. Step 3: Cross multiply
    137,727.20x = 206,590.80 × 95,736.80
  4. Step 4: Simplify right side
    137,727.20x = 19,778,342,101.44
  5. Step 5: Solve for x
    x = 19,778,342,101.44/137,727.20
  6. Step 6: Final answer
    x = 143,605.20

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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.