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Finding the Third Proportional to 83,668.50 and 125,688

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Solution

The third proportional to 83,668.50 and 125,688 is: 188,810.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,668.50 : 125,688 = 125,688 : x
  2. Step 2: Convert to fraction form
    83,668.50/125,688 = 125,688/x
  3. Step 3: Cross multiply
    83,668.50x = 125,688 × 125,688
  4. Step 4: Simplify right side
    83,668.50x = 15,797,473,344
  5. Step 5: Solve for x
    x = 15,797,473,344/83,668.50
  6. Step 6: Final answer
    x = 188,810.29

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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.