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Finding the Fourth Proportional to 200,463.64, 300,730.20 and 67,356.88

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Solution

The fourth proportional to 200,463.64, 300,730.20 and 67,356.88 is: 101,046.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,463.64 : 300,730.20 = 67,356.88 : x
  2. Step 2: Convert to fraction form
    200,463.64/300,730.20 = 67,356.88/x
  3. Step 3: Cross multiply
    200,463.64x = 300,730.20 × 67,356.88
  4. Step 4: Simplify right side
    200,463.64x = 20,256,247,993.78
  5. Step 5: Solve for x
    x = 20,256,247,993.78/200,463.64
  6. Step 6: Final answer
    x = 101,046.99

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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.