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Finding the Third Proportional to 63,122.63 and 138,753

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Solution

The third proportional to 63,122.63 and 138,753 is: 304,999.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,122.63 : 138,753 = 138,753 : x
  2. Step 2: Convert to fraction form
    63,122.63/138,753 = 138,753/x
  3. Step 3: Cross multiply
    63,122.63x = 138,753 × 138,753
  4. Step 4: Simplify right side
    63,122.63x = 19,252,395,009
  5. Step 5: Solve for x
    x = 19,252,395,009/63,122.63
  6. Step 6: Final answer
    x = 304,999.91

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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.