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Finding the Fourth Proportional to 338,660.55, 467,356.82 and 185,712.71

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Solution

The fourth proportional to 338,660.55, 467,356.82 and 185,712.71 is: 256,286.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,660.55 : 467,356.82 = 185,712.71 : x
  2. Step 2: Convert to fraction form
    338,660.55/467,356.82 = 185,712.71/x
  3. Step 3: Cross multiply
    338,660.55x = 467,356.82 × 185,712.71
  4. Step 4: Simplify right side
    338,660.55x = 86,794,098,313.83
  5. Step 5: Solve for x
    x = 86,794,098,313.83/338,660.55
  6. Step 6: Final answer
    x = 256,286.42

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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.