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Finding the Third Proportional to 76,578 and 162,248

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Solution

The third proportional to 76,578 and 162,248 is: 343,759.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,578 : 162,248 = 162,248 : x
  2. Step 2: Convert to fraction form
    76,578/162,248 = 162,248/x
  3. Step 3: Cross multiply
    76,578x = 162,248 × 162,248
  4. Step 4: Simplify right side
    76,578x = 26,324,413,504
  5. Step 5: Solve for x
    x = 26,324,413,504/76,578
  6. Step 6: Final answer
    x = 343,759.48

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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.