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Finding the Fourth Proportional to 149,613.48, 206,460.90 and 82,545.48

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Solution

The fourth proportional to 149,613.48, 206,460.90 and 82,545.48 is: 113,909.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,613.48 : 206,460.90 = 82,545.48 : x
  2. Step 2: Convert to fraction form
    149,613.48/206,460.90 = 82,545.48/x
  3. Step 3: Cross multiply
    149,613.48x = 206,460.90 × 82,545.48
  4. Step 4: Simplify right side
    149,613.48x = 17,042,414,091.73
  5. Step 5: Solve for x
    x = 17,042,414,091.73/149,613.48
  6. Step 6: Final answer
    x = 113,909.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.