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Finding the Third Proportional to 131,266.50 and 198,099

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Solution

The third proportional to 131,266.50 and 198,099 is: 298,958.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    131,266.50 : 198,099 = 198,099 : x
  2. Step 2: Convert to fraction form
    131,266.50/198,099 = 198,099/x
  3. Step 3: Cross multiply
    131,266.50x = 198,099 × 198,099
  4. Step 4: Simplify right side
    131,266.50x = 39,243,213,801
  5. Step 5: Solve for x
    x = 39,243,213,801/131,266.50
  6. Step 6: Final answer
    x = 298,958.33

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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.