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Finding the Fourth Proportional to 223,136.37, 334,555.92 and 80,963.21

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Solution

The fourth proportional to 223,136.37, 334,555.92 and 80,963.21 is: 121,390.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,136.37 : 334,555.92 = 80,963.21 : x
  2. Step 2: Convert to fraction form
    223,136.37/334,555.92 = 80,963.21/x
  3. Step 3: Cross multiply
    223,136.37x = 334,555.92 × 80,963.21
  4. Step 4: Simplify right side
    223,136.37x = 27,086,722,044.09
  5. Step 5: Solve for x
    x = 27,086,722,044.09/223,136.37
  6. Step 6: Final answer
    x = 121,390.89

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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.