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Finding the Third Proportional to 88,640 and 132,660

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Solution

The third proportional to 88,640 and 132,660 is: 198,541.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,640 : 132,660 = 132,660 : x
  2. Step 2: Convert to fraction form
    88,640/132,660 = 132,660/x
  3. Step 3: Cross multiply
    88,640x = 132,660 × 132,660
  4. Step 4: Simplify right side
    88,640x = 17,598,675,600
  5. Step 5: Solve for x
    x = 17,598,675,600/88,640
  6. Step 6: Final answer
    x = 198,541.02

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.