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Finding the Fourth Proportional to 226,969.75, 313,220.42 and 126,369.91

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Solution

The fourth proportional to 226,969.75, 313,220.42 and 126,369.91 is: 174,391.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,969.75 : 313,220.42 = 126,369.91 : x
  2. Step 2: Convert to fraction form
    226,969.75/313,220.42 = 126,369.91/x
  3. Step 3: Cross multiply
    226,969.75x = 313,220.42 × 126,369.91
  4. Step 4: Simplify right side
    226,969.75x = 39,581,636,285.56
  5. Step 5: Solve for x
    x = 39,581,636,285.56/226,969.75
  6. Step 6: Final answer
    x = 174,391.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.