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Finding the Third Proportional to 159,128 and 350,248

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Solution

The third proportional to 159,128 and 350,248 is: 770,911.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,128 : 350,248 = 350,248 : x
  2. Step 2: Convert to fraction form
    159,128/350,248 = 350,248/x
  3. Step 3: Cross multiply
    159,128x = 350,248 × 350,248
  4. Step 4: Simplify right side
    159,128x = 122,673,661,504
  5. Step 5: Solve for x
    x = 122,673,661,504/159,128
  6. Step 6: Final answer
    x = 770,911.85

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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.