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Finding the Fourth Proportional to 321,960.54, 444,283.31 and 178,709.31

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Solution

The fourth proportional to 321,960.54, 444,283.31 and 178,709.31 is: 246,606.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,960.54 : 444,283.31 = 178,709.31 : x
  2. Step 2: Convert to fraction form
    321,960.54/444,283.31 = 178,709.31/x
  3. Step 3: Cross multiply
    321,960.54x = 444,283.31 × 178,709.31
  4. Step 4: Simplify right side
    321,960.54x = 79,397,562,881.07
  5. Step 5: Solve for x
    x = 79,397,562,881.07/321,960.54
  6. Step 6: Final answer
    x = 246,606.50

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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.