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Finding the Fourth Proportional to 273,996.70, 411,033.78 and 84,472.49

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Solution

The fourth proportional to 273,996.70, 411,033.78 and 84,472.49 is: 126,720.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,996.70 : 411,033.78 = 84,472.49 : x
  2. Step 2: Convert to fraction form
    273,996.70/411,033.78 = 84,472.49/x
  3. Step 3: Cross multiply
    273,996.70x = 411,033.78 × 84,472.49
  4. Step 4: Simplify right side
    273,996.70x = 34,721,047,898.30
  5. Step 5: Solve for x
    x = 34,721,047,898.30/273,996.70
  6. Step 6: Final answer
    x = 126,720.68

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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.