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Finding the Fourth Proportional to 112,388.80, 168,561.60 and 33,505.60

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Solution

The fourth proportional to 112,388.80, 168,561.60 and 33,505.60 is: 50,251.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,388.80 : 168,561.60 = 33,505.60 : x
  2. Step 2: Convert to fraction form
    112,388.80/168,561.60 = 33,505.60/x
  3. Step 3: Cross multiply
    112,388.80x = 168,561.60 × 33,505.60
  4. Step 4: Simplify right side
    112,388.80x = 5,647,757,544.96
  5. Step 5: Solve for x
    x = 5,647,757,544.96/112,388.80
  6. Step 6: Final answer
    x = 50,251.96

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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.