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Finding the Fourth Proportional to 117,443.52, 176,257.62 and 54,292.68

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Solution

The fourth proportional to 117,443.52, 176,257.62 and 54,292.68 is: 81,481.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,443.52 : 176,257.62 = 54,292.68 : x
  2. Step 2: Convert to fraction form
    117,443.52/176,257.62 = 54,292.68/x
  3. Step 3: Cross multiply
    117,443.52x = 176,257.62 × 54,292.68
  4. Step 4: Simplify right side
    117,443.52x = 9,569,498,560.22
  5. Step 5: Solve for x
    x = 9,569,498,560.22/117,443.52
  6. Step 6: Final answer
    x = 81,481.71

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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.