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Finding the Fourth Proportional to 111,608.40, 167,542.20 and 110,830.80

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Solution

The fourth proportional to 111,608.40, 167,542.20 and 110,830.80 is: 166,374.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,608.40 : 167,542.20 = 110,830.80 : x
  2. Step 2: Convert to fraction form
    111,608.40/167,542.20 = 110,830.80/x
  3. Step 3: Cross multiply
    111,608.40x = 167,542.20 × 110,830.80
  4. Step 4: Simplify right side
    111,608.40x = 18,568,836,059.76
  5. Step 5: Solve for x
    x = 18,568,836,059.76/111,608.40
  6. Step 6: Final answer
    x = 166,374.90

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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.