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Finding the Fourth Proportional to 111,456.75, 167,194.85 and 28,350.75

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Solution

The fourth proportional to 111,456.75, 167,194.85 and 28,350.75 is: 42,528.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,456.75 : 167,194.85 = 28,350.75 : x
  2. Step 2: Convert to fraction form
    111,456.75/167,194.85 = 28,350.75/x
  3. Step 3: Cross multiply
    111,456.75x = 167,194.85 × 28,350.75
  4. Step 4: Simplify right side
    111,456.75x = 4,740,099,251.88
  5. Step 5: Solve for x
    x = 4,740,099,251.88/111,456.75
  6. Step 6: Final answer
    x = 42,528.60

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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.