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Finding the Fourth Proportional to 358,876.73, 538,393.92 and 106,137.52

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Solution

The fourth proportional to 358,876.73, 538,393.92 and 106,137.52 is: 159,229.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    358,876.73 : 538,393.92 = 106,137.52 : x
  2. Step 2: Convert to fraction form
    358,876.73/538,393.92 = 106,137.52/x
  3. Step 3: Cross multiply
    358,876.73x = 538,393.92 × 106,137.52
  4. Step 4: Simplify right side
    358,876.73x = 57,143,793,418.54
  5. Step 5: Solve for x
    x = 57,143,793,418.54/358,876.73
  6. Step 6: Final answer
    x = 159,229.59

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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.