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Finding the Third Proportional to 84,766.50 and 128,241

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Solution

The third proportional to 84,766.50 and 128,241 is: 194,012.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,766.50 : 128,241 = 128,241 : x
  2. Step 2: Convert to fraction form
    84,766.50/128,241 = 128,241/x
  3. Step 3: Cross multiply
    84,766.50x = 128,241 × 128,241
  4. Step 4: Simplify right side
    84,766.50x = 16,445,754,081
  5. Step 5: Solve for x
    x = 16,445,754,081/84,766.50
  6. Step 6: Final answer
    x = 194,012.42

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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.