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Finding the Fourth Proportional to 200,474.81, 300,757.05 and 67,351.41

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Solution

The fourth proportional to 200,474.81, 300,757.05 and 67,351.41 is: 101,042.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,474.81 : 300,757.05 = 67,351.41 : x
  2. Step 2: Convert to fraction form
    200,474.81/300,757.05 = 67,351.41/x
  3. Step 3: Cross multiply
    200,474.81x = 300,757.05 × 67,351.41
  4. Step 4: Simplify right side
    200,474.81x = 20,256,411,384.94
  5. Step 5: Solve for x
    x = 20,256,411,384.94/200,474.81
  6. Step 6: Final answer
    x = 101,042.18

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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.