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Finding the Third Proportional to 81,798 and 122,697

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Solution

The third proportional to 81,798 and 122,697 is: 184,045.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,798 : 122,697 = 122,697 : x
  2. Step 2: Convert to fraction form
    81,798/122,697 = 122,697/x
  3. Step 3: Cross multiply
    81,798x = 122,697 × 122,697
  4. Step 4: Simplify right side
    81,798x = 15,054,553,809
  5. Step 5: Solve for x
    x = 15,054,553,809/81,798
  6. Step 6: Final answer
    x = 184,045.50

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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.