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Finding the Third Proportional to 171,687.75 and 266,158.50

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Solution

The third proportional to 171,687.75 and 266,158.50 is: 412,611.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,687.75 : 266,158.50 = 266,158.50 : x
  2. Step 2: Convert to fraction form
    171,687.75/266,158.50 = 266,158.50/x
  3. Step 3: Cross multiply
    171,687.75x = 266,158.50 × 266,158.50
  4. Step 4: Simplify right side
    171,687.75x = 70,840,347,122.25
  5. Step 5: Solve for x
    x = 70,840,347,122.25/171,687.75
  6. Step 6: Final answer
    x = 412,611.54

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.