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Finding the Fourth Proportional to 112,506.20, 168,761.30 and 33,621.40

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Solution

The fourth proportional to 112,506.20, 168,761.30 and 33,621.40 is: 50,432.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    112,506.20 : 168,761.30 = 33,621.40 : x
  2. Step 2: Convert to fraction form
    112,506.20/168,761.30 = 33,621.40/x
  3. Step 3: Cross multiply
    112,506.20x = 168,761.30 × 33,621.40
  4. Step 4: Simplify right side
    112,506.20x = 5,673,991,171.82
  5. Step 5: Solve for x
    x = 5,673,991,171.82/112,506.20
  6. Step 6: Final answer
    x = 50,432.70

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.