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Finding the Fourth Proportional to 137,519.54, 205,959.46 and 133,735.73

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Solution

The fourth proportional to 137,519.54, 205,959.46 and 133,735.73 is: 200,292.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,519.54 : 205,959.46 = 133,735.73 : x
  2. Step 2: Convert to fraction form
    137,519.54/205,959.46 = 133,735.73/x
  3. Step 3: Cross multiply
    137,519.54x = 205,959.46 × 133,735.73
  4. Step 4: Simplify right side
    137,519.54x = 27,544,138,778.65
  5. Step 5: Solve for x
    x = 27,544,138,778.65/137,519.54
  6. Step 6: Final answer
    x = 200,292.54

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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.