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Finding the Third Proportional to 117,532 and 258,391

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Solution

The third proportional to 117,532 and 258,391 is: 568,065.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,532 : 258,391 = 258,391 : x
  2. Step 2: Convert to fraction form
    117,532/258,391 = 258,391/x
  3. Step 3: Cross multiply
    117,532x = 258,391 × 258,391
  4. Step 4: Simplify right side
    117,532x = 66,765,908,881
  5. Step 5: Solve for x
    x = 66,765,908,881/117,532
  6. Step 6: Final answer
    x = 568,065.79

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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.