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Finding the Third Proportional to 106,786 and 162,880

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Solution

The third proportional to 106,786 and 162,880 is: 248,439.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,786 : 162,880 = 162,880 : x
  2. Step 2: Convert to fraction form
    106,786/162,880 = 162,880/x
  3. Step 3: Cross multiply
    106,786x = 162,880 × 162,880
  4. Step 4: Simplify right side
    106,786x = 26,529,894,400
  5. Step 5: Solve for x
    x = 26,529,894,400/106,786
  6. Step 6: Final answer
    x = 248,439.82

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.