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Finding the Third Proportional to 201,129 and 298,215

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Solution

The third proportional to 201,129 and 298,215 is: 442,164.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,129 : 298,215 = 298,215 : x
  2. Step 2: Convert to fraction form
    201,129/298,215 = 298,215/x
  3. Step 3: Cross multiply
    201,129x = 298,215 × 298,215
  4. Step 4: Simplify right side
    201,129x = 88,932,186,225
  5. Step 5: Solve for x
    x = 88,932,186,225/201,129
  6. Step 6: Final answer
    x = 442,164.91

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.