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Finding the Third Proportional to 115,558 and 248,360

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Solution

The third proportional to 115,558 and 248,360 is: 533,781.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,558 : 248,360 = 248,360 : x
  2. Step 2: Convert to fraction form
    115,558/248,360 = 248,360/x
  3. Step 3: Cross multiply
    115,558x = 248,360 × 248,360
  4. Step 4: Simplify right side
    115,558x = 61,682,689,600
  5. Step 5: Solve for x
    x = 61,682,689,600/115,558
  6. Step 6: Final answer
    x = 533,781.21

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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.