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Finding the Fourth Proportional to 217,888.52, 326,680.32 and 111,305.48

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Solution

The fourth proportional to 217,888.52, 326,680.32 and 111,305.48 is: 166,880.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,888.52 : 326,680.32 = 111,305.48 : x
  2. Step 2: Convert to fraction form
    217,888.52/326,680.32 = 111,305.48/x
  3. Step 3: Cross multiply
    217,888.52x = 326,680.32 × 111,305.48
  4. Step 4: Simplify right side
    217,888.52x = 36,361,309,824.15
  5. Step 5: Solve for x
    x = 36,361,309,824.15/217,888.52
  6. Step 6: Final answer
    x = 166,880.34

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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.