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Finding the Third Proportional to 75,354.75 and 100,521

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Solution

The third proportional to 75,354.75 and 100,521 is: 134,092.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,354.75 : 100,521 = 100,521 : x
  2. Step 2: Convert to fraction form
    75,354.75/100,521 = 100,521/x
  3. Step 3: Cross multiply
    75,354.75x = 100,521 × 100,521
  4. Step 4: Simplify right side
    75,354.75x = 10,104,471,441
  5. Step 5: Solve for x
    x = 10,104,471,441/75,354.75
  6. Step 6: Final answer
    x = 134,092.03

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Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.