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Finding the Fourth Proportional to 111,609.80, 167,414.70 and 100,334.60

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Solution

The fourth proportional to 111,609.80, 167,414.70 and 100,334.60 is: 150,501.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,609.80 : 167,414.70 = 100,334.60 : x
  2. Step 2: Convert to fraction form
    111,609.80/167,414.70 = 100,334.60/x
  3. Step 3: Cross multiply
    111,609.80x = 167,414.70 × 100,334.60
  4. Step 4: Simplify right side
    111,609.80x = 16,797,486,958.62
  5. Step 5: Solve for x
    x = 16,797,486,958.62/111,609.80
  6. Step 6: Final answer
    x = 150,501.90

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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.