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Finding the Third Proportional to 81,885.19 and 173,611.75

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Solution

The third proportional to 81,885.19 and 173,611.75 is: 368,089.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,885.19 : 173,611.75 = 173,611.75 : x
  2. Step 2: Convert to fraction form
    81,885.19/173,611.75 = 173,611.75/x
  3. Step 3: Cross multiply
    81,885.19x = 173,611.75 × 173,611.75
  4. Step 4: Simplify right side
    81,885.19x = 30,141,039,738.06
  5. Step 5: Solve for x
    x = 30,141,039,738.06/81,885.19
  6. Step 6: Final answer
    x = 368,089.04

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Why These Related Problems?

These problems maintain the same ratio (2.12) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.