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Finding the Third Proportional to 117,122 and 257,568

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Solution

The third proportional to 117,122 and 257,568 is: 566,428.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,122 : 257,568 = 257,568 : x
  2. Step 2: Convert to fraction form
    117,122/257,568 = 257,568/x
  3. Step 3: Cross multiply
    117,122x = 257,568 × 257,568
  4. Step 4: Simplify right side
    117,122x = 66,341,274,624
  5. Step 5: Solve for x
    x = 66,341,274,624/117,122
  6. Step 6: Final answer
    x = 566,428.81

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.