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Finding the Fourth Proportional to 77,650.62, 116,446.44 and 27,721.41

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Solution

The fourth proportional to 77,650.62, 116,446.44 and 27,721.41 is: 41,571.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,650.62 : 116,446.44 = 27,721.41 : x
  2. Step 2: Convert to fraction form
    77,650.62/116,446.44 = 27,721.41/x
  3. Step 3: Cross multiply
    77,650.62x = 116,446.44 × 27,721.41
  4. Step 4: Simplify right side
    77,650.62x = 3,228,059,506.28
  5. Step 5: Solve for x
    x = 3,228,059,506.28/77,650.62
  6. Step 6: Final answer
    x = 41,571.59

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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.