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Finding the Fourth Proportional to 227,908.60, 342,170.70 and 133,235.80

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Solution

The fourth proportional to 227,908.60, 342,170.70 and 133,235.80 is: 200,033.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,908.60 : 342,170.70 = 133,235.80 : x
  2. Step 2: Convert to fraction form
    227,908.60/342,170.70 = 133,235.80/x
  3. Step 3: Cross multiply
    227,908.60x = 342,170.70 × 133,235.80
  4. Step 4: Simplify right side
    227,908.60x = 45,589,386,951.06
  5. Step 5: Solve for x
    x = 45,589,386,951.06/227,908.60
  6. Step 6: Final answer
    x = 200,033.64

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1.5x scale

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.