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Finding the Fourth Proportional to 200,385.72, 300,578.56 and 50,626.44

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Solution

The fourth proportional to 200,385.72, 300,578.56 and 50,626.44 is: 75,939.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,385.72 : 300,578.56 = 50,626.44 : x
  2. Step 2: Convert to fraction form
    200,385.72/300,578.56 = 50,626.44/x
  3. Step 3: Cross multiply
    200,385.72x = 300,578.56 × 50,626.44
  4. Step 4: Simplify right side
    200,385.72x = 15,217,222,433.13
  5. Step 5: Solve for x
    x = 15,217,222,433.13/200,385.72
  6. Step 6: Final answer
    x = 75,939.65

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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.