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Finding the Third Proportional to 100,961 and 156,768

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Solution

The third proportional to 100,961 and 156,768 is: 243,422.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,961 : 156,768 = 156,768 : x
  2. Step 2: Convert to fraction form
    100,961/156,768 = 156,768/x
  3. Step 3: Cross multiply
    100,961x = 156,768 × 156,768
  4. Step 4: Simplify right side
    100,961x = 24,576,205,824
  5. Step 5: Solve for x
    x = 24,576,205,824/100,961
  6. Step 6: Final answer
    x = 243,422.77

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.