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Finding the Fourth Proportional to 165,793.47, 248,751.78 and 115,165.82

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Solution

The fourth proportional to 165,793.47, 248,751.78 and 115,165.82 is: 172,791.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,793.47 : 248,751.78 = 115,165.82 : x
  2. Step 2: Convert to fraction form
    165,793.47/248,751.78 = 115,165.82/x
  3. Step 3: Cross multiply
    165,793.47x = 248,751.78 × 115,165.82
  4. Step 4: Simplify right side
    165,793.47x = 28,647,702,384.16
  5. Step 5: Solve for x
    x = 28,647,702,384.16/165,793.47
  6. Step 6: Final answer
    x = 172,791.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.