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Finding the Third Proportional to 116,781 and 156,923

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Solution

The third proportional to 116,781 and 156,923 is: 210,863.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,781 : 156,923 = 156,923 : x
  2. Step 2: Convert to fraction form
    116,781/156,923 = 156,923/x
  3. Step 3: Cross multiply
    116,781x = 156,923 × 156,923
  4. Step 4: Simplify right side
    116,781x = 24,624,827,929
  5. Step 5: Solve for x
    x = 24,624,827,929/116,781
  6. Step 6: Final answer
    x = 210,863.31

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Why These Related Problems?

These problems maintain the same ratio (1.34) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.