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Finding the Fourth Proportional to 239,464.92, 330,118.23 and 188,388.95

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Solution

The fourth proportional to 239,464.92, 330,118.23 and 188,388.95 is: 259,706.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,464.92 : 330,118.23 = 188,388.95 : x
  2. Step 2: Convert to fraction form
    239,464.92/330,118.23 = 188,388.95/x
  3. Step 3: Cross multiply
    239,464.92x = 330,118.23 × 188,388.95
  4. Step 4: Simplify right side
    239,464.92x = 62,190,625,074.97
  5. Step 5: Solve for x
    x = 62,190,625,074.97/239,464.92
  6. Step 6: Final answer
    x = 259,706.62

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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.