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Finding the Third Proportional to 63,642.75 and 125,679

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Solution

The third proportional to 63,642.75 and 125,679 is: 248,185.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,642.75 : 125,679 = 125,679 : x
  2. Step 2: Convert to fraction form
    63,642.75/125,679 = 125,679/x
  3. Step 3: Cross multiply
    63,642.75x = 125,679 × 125,679
  4. Step 4: Simplify right side
    63,642.75x = 15,795,211,041
  5. Step 5: Solve for x
    x = 15,795,211,041/63,642.75
  6. Step 6: Final answer
    x = 248,185.55

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Why These Related Problems?

These problems maintain the same ratio (1.97) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.