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Finding the Fourth Proportional to 217,331.91, 325,930.35 and 104,942.25

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Solution

The fourth proportional to 217,331.91, 325,930.35 and 104,942.25 is: 157,380.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,331.91 : 325,930.35 = 104,942.25 : x
  2. Step 2: Convert to fraction form
    217,331.91/325,930.35 = 104,942.25/x
  3. Step 3: Cross multiply
    217,331.91x = 325,930.35 × 104,942.25
  4. Step 4: Simplify right side
    217,331.91x = 34,203,864,272.29
  5. Step 5: Solve for x
    x = 34,203,864,272.29/217,331.91
  6. Step 6: Final answer
    x = 157,380.77

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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.