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Finding the Third Proportional to 148,322 and 318,244

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Solution

The third proportional to 148,322 and 318,244 is: 682,833.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,322 : 318,244 = 318,244 : x
  2. Step 2: Convert to fraction form
    148,322/318,244 = 318,244/x
  3. Step 3: Cross multiply
    148,322x = 318,244 × 318,244
  4. Step 4: Simplify right side
    148,322x = 101,279,243,536
  5. Step 5: Solve for x
    x = 101,279,243,536/148,322
  6. Step 6: Final answer
    x = 682,833.59

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.