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Finding the Fourth Proportional to 194,667.80, 268,601.46 and 111,865.78

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Solution

The fourth proportional to 194,667.80, 268,601.46 and 111,865.78 is: 154,351.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,667.80 : 268,601.46 = 111,865.78 : x
  2. Step 2: Convert to fraction form
    194,667.80/268,601.46 = 111,865.78/x
  3. Step 3: Cross multiply
    194,667.80x = 268,601.46 × 111,865.78
  4. Step 4: Simplify right side
    194,667.80x = 30,047,311,832.04
  5. Step 5: Solve for x
    x = 30,047,311,832.04/194,667.80
  6. Step 6: Final answer
    x = 154,351.73

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.