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Finding the Fourth Proportional to 55,247.44, 76,240.02 and 31,046.44

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Solution

The fourth proportional to 55,247.44, 76,240.02 and 31,046.44 is: 42,843.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,247.44 : 76,240.02 = 31,046.44 : x
  2. Step 2: Convert to fraction form
    55,247.44/76,240.02 = 31,046.44/x
  3. Step 3: Cross multiply
    55,247.44x = 76,240.02 × 31,046.44
  4. Step 4: Simplify right side
    55,247.44x = 2,366,981,206.53
  5. Step 5: Solve for x
    x = 2,366,981,206.53/55,247.44
  6. Step 6: Final answer
    x = 42,843.27

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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.