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Finding the Fourth Proportional to 205,679.82, 308,558.35 and 93,367.92

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Solution

The fourth proportional to 205,679.82, 308,558.35 and 93,367.92 is: 140,069.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,679.82 : 308,558.35 = 93,367.92 : x
  2. Step 2: Convert to fraction form
    205,679.82/308,558.35 = 93,367.92/x
  3. Step 3: Cross multiply
    205,679.82x = 308,558.35 × 93,367.92
  4. Step 4: Simplify right side
    205,679.82x = 28,809,451,338.13
  5. Step 5: Solve for x
    x = 28,809,451,338.13/205,679.82
  6. Step 6: Final answer
    x = 140,069.41

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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.