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Finding the Third Proportional to 107,313 and 170,821

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Solution

The third proportional to 107,313 and 170,821 is: 271,913.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,313 : 170,821 = 170,821 : x
  2. Step 2: Convert to fraction form
    107,313/170,821 = 170,821/x
  3. Step 3: Cross multiply
    107,313x = 170,821 × 170,821
  4. Step 4: Simplify right side
    107,313x = 29,179,814,041
  5. Step 5: Solve for x
    x = 29,179,814,041/107,313
  6. Step 6: Final answer
    x = 271,913.13

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.