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Finding the Fourth Proportional to 323,078.20, 445,843.14 and 179,838.04

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Solution

The fourth proportional to 323,078.20, 445,843.14 and 179,838.04 is: 248,173.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,078.20 : 445,843.14 = 179,838.04 : x
  2. Step 2: Convert to fraction form
    323,078.20/445,843.14 = 179,838.04/x
  3. Step 3: Cross multiply
    323,078.20x = 445,843.14 × 179,838.04
  4. Step 4: Simplify right side
    323,078.20x = 80,179,556,445.05
  5. Step 5: Solve for x
    x = 80,179,556,445.05/323,078.20
  6. Step 6: Final answer
    x = 248,173.84

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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.