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Finding the Fourth Proportional to 200,339.56, 300,661.72 and 74,099.24

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Solution

The fourth proportional to 200,339.56, 300,661.72 and 74,099.24 is: 111,205.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,339.56 : 300,661.72 = 74,099.24 : x
  2. Step 2: Convert to fraction form
    200,339.56/300,661.72 = 74,099.24/x
  3. Step 3: Cross multiply
    200,339.56x = 300,661.72 × 74,099.24
  4. Step 4: Simplify right side
    200,339.56x = 22,278,804,949.09
  5. Step 5: Solve for x
    x = 22,278,804,949.09/200,339.56
  6. Step 6: Final answer
    x = 111,205.22

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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.