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Finding the Fourth Proportional to 200,640.14, 300,960.77 and 50,880.52

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Solution

The fourth proportional to 200,640.14, 300,960.77 and 50,880.52 is: 76,320.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,640.14 : 300,960.77 = 50,880.52 : x
  2. Step 2: Convert to fraction form
    200,640.14/300,960.77 = 50,880.52/x
  3. Step 3: Cross multiply
    200,640.14x = 300,960.77 × 50,880.52
  4. Step 4: Simplify right side
    200,640.14x = 15,313,040,599.00
  5. Step 5: Solve for x
    x = 15,313,040,599.00/200,640.14
  6. Step 6: Final answer
    x = 76,320.92

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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.