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Finding the Third Proportional to 54,407 and 115,339

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Solution

The third proportional to 54,407 and 115,339 is: 244,510.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,407 : 115,339 = 115,339 : x
  2. Step 2: Convert to fraction form
    54,407/115,339 = 115,339/x
  3. Step 3: Cross multiply
    54,407x = 115,339 × 115,339
  4. Step 4: Simplify right side
    54,407x = 13,303,084,921
  5. Step 5: Solve for x
    x = 13,303,084,921/54,407
  6. Step 6: Final answer
    x = 244,510.54

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.