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Finding the Third Proportional to 61,691.25 and 132,740.25

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Solution

The third proportional to 61,691.25 and 132,740.25 is: 285,615.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,691.25 : 132,740.25 = 132,740.25 : x
  2. Step 2: Convert to fraction form
    61,691.25/132,740.25 = 132,740.25/x
  3. Step 3: Cross multiply
    61,691.25x = 132,740.25 × 132,740.25
  4. Step 4: Simplify right side
    61,691.25x = 17,619,973,970.06
  5. Step 5: Solve for x
    x = 17,619,973,970.06/61,691.25
  6. Step 6: Final answer
    x = 285,615.45

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.