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Finding the Third Proportional to 66,839.25 and 148,621.50

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Solution

The third proportional to 66,839.25 and 148,621.50 is: 330,469.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,839.25 : 148,621.50 = 148,621.50 : x
  2. Step 2: Convert to fraction form
    66,839.25/148,621.50 = 148,621.50/x
  3. Step 3: Cross multiply
    66,839.25x = 148,621.50 × 148,621.50
  4. Step 4: Simplify right side
    66,839.25x = 22,088,350,262.25
  5. Step 5: Solve for x
    x = 22,088,350,262.25/66,839.25
  6. Step 6: Final answer
    x = 330,469.75

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Why These Related Problems?

These problems maintain the same ratio (2.22) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.