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Finding the Fourth Proportional to 137,747.80, 206,621.70 and 95,538.70

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Solution

The fourth proportional to 137,747.80, 206,621.70 and 95,538.70 is: 143,308.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,747.80 : 206,621.70 = 95,538.70 : x
  2. Step 2: Convert to fraction form
    137,747.80/206,621.70 = 95,538.70/x
  3. Step 3: Cross multiply
    137,747.80x = 206,621.70 × 95,538.70
  4. Step 4: Simplify right side
    137,747.80x = 19,740,368,609.79
  5. Step 5: Solve for x
    x = 19,740,368,609.79/137,747.80
  6. Step 6: Final answer
    x = 143,308.05

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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.