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Finding the Third Proportional to 187,516.50 and 281,295

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Solution

The third proportional to 187,516.50 and 281,295 is: 421,972.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,516.50 : 281,295 = 281,295 : x
  2. Step 2: Convert to fraction form
    187,516.50/281,295 = 281,295/x
  3. Step 3: Cross multiply
    187,516.50x = 281,295 × 281,295
  4. Step 4: Simplify right side
    187,516.50x = 79,126,877,025
  5. Step 5: Solve for x
    x = 79,126,877,025/187,516.50
  6. Step 6: Final answer
    x = 421,972.88

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.