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Finding the Third Proportional to 53,398 and 117,454

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Solution

The third proportional to 53,398 and 117,454 is: 258,351.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,398 : 117,454 = 117,454 : x
  2. Step 2: Convert to fraction form
    53,398/117,454 = 117,454/x
  3. Step 3: Cross multiply
    53,398x = 117,454 × 117,454
  4. Step 4: Simplify right side
    53,398x = 13,795,442,116
  5. Step 5: Solve for x
    x = 13,795,442,116/53,398
  6. Step 6: Final answer
    x = 258,351.29

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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.