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Finding the Third Proportional to 79,654 and 108,242

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Solution

The third proportional to 79,654 and 108,242 is: 147,090.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,654 : 108,242 = 108,242 : x
  2. Step 2: Convert to fraction form
    79,654/108,242 = 108,242/x
  3. Step 3: Cross multiply
    79,654x = 108,242 × 108,242
  4. Step 4: Simplify right side
    79,654x = 11,716,330,564
  5. Step 5: Solve for x
    x = 11,716,330,564/79,654
  6. Step 6: Final answer
    x = 147,090.30

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Why These Related Problems?

These problems maintain the same ratio (1.36) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.