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Finding the Third Proportional to 132,318 and 197,109

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Solution

The third proportional to 132,318 and 197,109 is: 293,625.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,318 : 197,109 = 197,109 : x
  2. Step 2: Convert to fraction form
    132,318/197,109 = 197,109/x
  3. Step 3: Cross multiply
    132,318x = 197,109 × 197,109
  4. Step 4: Simplify right side
    132,318x = 38,851,957,881
  5. Step 5: Solve for x
    x = 38,851,957,881/132,318
  6. Step 6: Final answer
    x = 293,625.64

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.