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Finding the Fourth Proportional to 215,937.82, 323,906.73 and 110,689.66

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Solution

The fourth proportional to 215,937.82, 323,906.73 and 110,689.66 is: 166,034.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,937.82 : 323,906.73 = 110,689.66 : x
  2. Step 2: Convert to fraction form
    215,937.82/323,906.73 = 110,689.66/x
  3. Step 3: Cross multiply
    215,937.82x = 323,906.73 × 110,689.66
  4. Step 4: Simplify right side
    215,937.82x = 35,853,125,815.41
  5. Step 5: Solve for x
    x = 35,853,125,815.41/215,937.82
  6. Step 6: Final answer
    x = 166,034.49

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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.