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Finding the Fourth Proportional to 216,704.43, 299,046.33 and 119,905.79

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Solution

The fourth proportional to 216,704.43, 299,046.33 and 119,905.79 is: 165,466.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,704.43 : 299,046.33 = 119,905.79 : x
  2. Step 2: Convert to fraction form
    216,704.43/299,046.33 = 119,905.79/x
  3. Step 3: Cross multiply
    216,704.43x = 299,046.33 × 119,905.79
  4. Step 4: Simplify right side
    216,704.43x = 35,857,384,950.02
  5. Step 5: Solve for x
    x = 35,857,384,950.02/216,704.43
  6. Step 6: Final answer
    x = 165,466.78

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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.