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Finding the Fourth Proportional to 192,680.76, 265,891.28 and 106,631.70

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Solution

The fourth proportional to 192,680.76, 265,891.28 and 106,631.70 is: 147,147.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,680.76 : 265,891.28 = 106,631.70 : x
  2. Step 2: Convert to fraction form
    192,680.76/265,891.28 = 106,631.70/x
  3. Step 3: Cross multiply
    192,680.76x = 265,891.28 × 106,631.70
  4. Step 4: Simplify right side
    192,680.76x = 28,352,438,668.42
  5. Step 5: Solve for x
    x = 28,352,438,668.42/192,680.76
  6. Step 6: Final answer
    x = 147,147.22

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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.