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Finding the Third Proportional to 101,326 and 156,909

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Solution

The third proportional to 101,326 and 156,909 is: 242,982.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,326 : 156,909 = 156,909 : x
  2. Step 2: Convert to fraction form
    101,326/156,909 = 156,909/x
  3. Step 3: Cross multiply
    101,326x = 156,909 × 156,909
  4. Step 4: Simplify right side
    101,326x = 24,620,434,281
  5. Step 5: Solve for x
    x = 24,620,434,281/101,326
  6. Step 6: Final answer
    x = 242,982.40

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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.