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Finding the Third Proportional to 60,621.75 and 131,611.50

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Solution

The third proportional to 60,621.75 and 131,611.50 is: 285,732.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,621.75 : 131,611.50 = 131,611.50 : x
  2. Step 2: Convert to fraction form
    60,621.75/131,611.50 = 131,611.50/x
  3. Step 3: Cross multiply
    60,621.75x = 131,611.50 × 131,611.50
  4. Step 4: Simplify right side
    60,621.75x = 17,321,586,932.25
  5. Step 5: Solve for x
    x = 17,321,586,932.25/60,621.75
  6. Step 6: Final answer
    x = 285,732.22

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.