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Finding the Third Proportional to 129,849.75 and 195,628.50

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Solution

The third proportional to 129,849.75 and 195,628.50 is: 294,729.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,849.75 : 195,628.50 = 195,628.50 : x
  2. Step 2: Convert to fraction form
    129,849.75/195,628.50 = 195,628.50/x
  3. Step 3: Cross multiply
    129,849.75x = 195,628.50 × 195,628.50
  4. Step 4: Simplify right side
    129,849.75x = 38,270,510,012.25
  5. Step 5: Solve for x
    x = 38,270,510,012.25/129,849.75
  6. Step 6: Final answer
    x = 294,729.18

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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.