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Finding the Third Proportional to 75,012.75 and 112,306.50

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Solution

The third proportional to 75,012.75 and 112,306.50 is: 168,141.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,012.75 : 112,306.50 = 112,306.50 : x
  2. Step 2: Convert to fraction form
    75,012.75/112,306.50 = 112,306.50/x
  3. Step 3: Cross multiply
    75,012.75x = 112,306.50 × 112,306.50
  4. Step 4: Simplify right side
    75,012.75x = 12,612,749,942.25
  5. Step 5: Solve for x
    x = 12,612,749,942.25/75,012.75
  6. Step 6: Final answer
    x = 168,141.42

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.