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Finding the Third Proportional to 149,728 and 324,725

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Solution

The third proportional to 149,728 and 324,725 is: 704,252.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,728 : 324,725 = 324,725 : x
  2. Step 2: Convert to fraction form
    149,728/324,725 = 324,725/x
  3. Step 3: Cross multiply
    149,728x = 324,725 × 324,725
  4. Step 4: Simplify right side
    149,728x = 105,446,325,625
  5. Step 5: Solve for x
    x = 105,446,325,625/149,728
  6. Step 6: Final answer
    x = 704,252.55

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.