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Finding the Third Proportional to 129,842 and 196,168

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Solution

The third proportional to 129,842 and 196,168 is: 296,374.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,842 : 196,168 = 196,168 : x
  2. Step 2: Convert to fraction form
    129,842/196,168 = 196,168/x
  3. Step 3: Cross multiply
    129,842x = 196,168 × 196,168
  4. Step 4: Simplify right side
    129,842x = 38,481,884,224
  5. Step 5: Solve for x
    x = 38,481,884,224/129,842
  6. Step 6: Final answer
    x = 296,374.70

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.