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Finding the Third Proportional to 117,585.75 and 258,581.25

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Solution

The third proportional to 117,585.75 and 258,581.25 is: 568,642.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,585.75 : 258,581.25 = 258,581.25 : x
  2. Step 2: Convert to fraction form
    117,585.75/258,581.25 = 258,581.25/x
  3. Step 3: Cross multiply
    117,585.75x = 258,581.25 × 258,581.25
  4. Step 4: Simplify right side
    117,585.75x = 66,864,262,851.56
  5. Step 5: Solve for x
    x = 66,864,262,851.56/117,585.75
  6. Step 6: Final answer
    x = 568,642.57

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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.