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Finding the Fourth Proportional to 112,542.40, 168,843.30 and 33,664.60

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Solution

The fourth proportional to 112,542.40, 168,843.30 and 33,664.60 is: 50,505.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,542.40 : 168,843.30 = 33,664.60 : x
  2. Step 2: Convert to fraction form
    112,542.40/168,843.30 = 33,664.60/x
  3. Step 3: Cross multiply
    112,542.40x = 168,843.30 × 33,664.60
  4. Step 4: Simplify right side
    112,542.40x = 5,684,042,157.18
  5. Step 5: Solve for x
    x = 5,684,042,157.18/112,542.40
  6. Step 6: Final answer
    x = 50,505.78

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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.