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Finding the Third Proportional to 63,778.50 and 140,131.13

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Solution

The third proportional to 63,778.50 and 140,131.13 is: 307,889.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,778.50 : 140,131.13 = 140,131.13 : x
  2. Step 2: Convert to fraction form
    63,778.50/140,131.13 = 140,131.13/x
  3. Step 3: Cross multiply
    63,778.50x = 140,131.13 × 140,131.13
  4. Step 4: Simplify right side
    63,778.50x = 19,636,732,193.77
  5. Step 5: Solve for x
    x = 19,636,732,193.77/63,778.50
  6. Step 6: Final answer
    x = 307,889.53

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.