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Finding the Third Proportional to 103,811 and 155,176

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Solution

The third proportional to 103,811 and 155,176 is: 231,956.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,811 : 155,176 = 155,176 : x
  2. Step 2: Convert to fraction form
    103,811/155,176 = 155,176/x
  3. Step 3: Cross multiply
    103,811x = 155,176 × 155,176
  4. Step 4: Simplify right side
    103,811x = 24,079,590,976
  5. Step 5: Solve for x
    x = 24,079,590,976/103,811
  6. Step 6: Final answer
    x = 231,956.06

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.