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Finding the Third Proportional to 101,792 and 149,640

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Solution

The third proportional to 101,792 and 149,640 is: 219,979.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,792 : 149,640 = 149,640 : x
  2. Step 2: Convert to fraction form
    101,792/149,640 = 149,640/x
  3. Step 3: Cross multiply
    101,792x = 149,640 × 149,640
  4. Step 4: Simplify right side
    101,792x = 22,392,129,600
  5. Step 5: Solve for x
    x = 22,392,129,600/101,792
  6. Step 6: Final answer
    x = 219,979.27

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.