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Finding the Fourth Proportional to 200,375.94, 300,583.96 and 74,049.35

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Solution

The fourth proportional to 200,375.94, 300,583.96 and 74,049.35 is: 111,081.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,375.94 : 300,583.96 = 74,049.35 : x
  2. Step 2: Convert to fraction form
    200,375.94/300,583.96 = 74,049.35/x
  3. Step 3: Cross multiply
    200,375.94x = 300,583.96 × 74,049.35
  4. Step 4: Simplify right side
    200,375.94x = 22,258,046,858.43
  5. Step 5: Solve for x
    x = 22,258,046,858.43/200,375.94
  6. Step 6: Final answer
    x = 111,081.43

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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.