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Finding the Third Proportional to 170,608 and 258,262

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Solution

The third proportional to 170,608 and 258,262 is: 390,950.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,608 : 258,262 = 258,262 : x
  2. Step 2: Convert to fraction form
    170,608/258,262 = 258,262/x
  3. Step 3: Cross multiply
    170,608x = 258,262 × 258,262
  4. Step 4: Simplify right side
    170,608x = 66,699,260,644
  5. Step 5: Solve for x
    x = 66,699,260,644/170,608
  6. Step 6: Final answer
    x = 390,950.37

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.