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Finding the Fourth Proportional to 204,786.80, 306,661.80 and 163,314.80

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Solution

The fourth proportional to 204,786.80, 306,661.80 and 163,314.80 is: 244,558.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,786.80 : 306,661.80 = 163,314.80 : x
  2. Step 2: Convert to fraction form
    204,786.80/306,661.80 = 163,314.80/x
  3. Step 3: Cross multiply
    204,786.80x = 306,661.80 × 163,314.80
  4. Step 4: Simplify right side
    204,786.80x = 50,082,410,534.64
  5. Step 5: Solve for x
    x = 50,082,410,534.64/204,786.80
  6. Step 6: Final answer
    x = 244,558.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.