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Finding the Fourth Proportional to 239,468.92, 330,123.74 and 188,392.94

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Solution

The fourth proportional to 239,468.92, 330,123.74 and 188,392.94 is: 259,712.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,468.92 : 330,123.74 = 188,392.94 : x
  2. Step 2: Convert to fraction form
    239,468.92/330,123.74 = 188,392.94/x
  3. Step 3: Cross multiply
    239,468.92x = 330,123.74 × 188,392.94
  4. Step 4: Simplify right side
    239,468.92x = 62,192,981,942.40
  5. Step 5: Solve for x
    x = 62,192,981,942.40/239,468.92
  6. Step 6: Final answer
    x = 259,712.12

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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.