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Finding the Fourth Proportional to 111,674.20, 167,219.70 and 72,016.60

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Solution

The fourth proportional to 111,674.20, 167,219.70 and 72,016.60 is: 107,836.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,674.20 : 167,219.70 = 72,016.60 : x
  2. Step 2: Convert to fraction form
    111,674.20/167,219.70 = 72,016.60/x
  3. Step 3: Cross multiply
    111,674.20x = 167,219.70 × 72,016.60
  4. Step 4: Simplify right side
    111,674.20x = 12,042,594,247.02
  5. Step 5: Solve for x
    x = 12,042,594,247.02/111,674.20
  6. Step 6: Final answer
    x = 107,836.85

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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.