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Finding the Third Proportional to 61,542 and 135,112.50

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Solution

The third proportional to 61,542 and 135,112.50 is: 296,632.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,542 : 135,112.50 = 135,112.50 : x
  2. Step 2: Convert to fraction form
    61,542/135,112.50 = 135,112.50/x
  3. Step 3: Cross multiply
    61,542x = 135,112.50 × 135,112.50
  4. Step 4: Simplify right side
    61,542x = 18,255,387,656.25
  5. Step 5: Solve for x
    x = 18,255,387,656.25/61,542
  6. Step 6: Final answer
    x = 296,632.99

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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.