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Finding the Third Proportional to 61,688 and 132,734

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Solution

The third proportional to 61,688 and 132,734 is: 285,603.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,688 : 132,734 = 132,734 : x
  2. Step 2: Convert to fraction form
    61,688/132,734 = 132,734/x
  3. Step 3: Cross multiply
    61,688x = 132,734 × 132,734
  4. Step 4: Simplify right side
    61,688x = 17,618,314,756
  5. Step 5: Solve for x
    x = 17,618,314,756/61,688
  6. Step 6: Final answer
    x = 285,603.60

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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.