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Finding the Third Proportional to 63,969.75 and 140,231.25

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Solution

The third proportional to 63,969.75 and 140,231.25 is: 307,407.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,969.75 : 140,231.25 = 140,231.25 : x
  2. Step 2: Convert to fraction form
    63,969.75/140,231.25 = 140,231.25/x
  3. Step 3: Cross multiply
    63,969.75x = 140,231.25 × 140,231.25
  4. Step 4: Simplify right side
    63,969.75x = 19,664,803,476.56
  5. Step 5: Solve for x
    x = 19,664,803,476.56/63,969.75
  6. Step 6: Final answer
    x = 307,407.85

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.