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Finding the Fourth Proportional to 226,628.14, 312,725.13 and 124,651.97

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Solution

The fourth proportional to 226,628.14, 312,725.13 and 124,651.97 is: 172,007.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,628.14 : 312,725.13 = 124,651.97 : x
  2. Step 2: Convert to fraction form
    226,628.14/312,725.13 = 124,651.97/x
  3. Step 3: Cross multiply
    226,628.14x = 312,725.13 × 124,651.97
  4. Step 4: Simplify right side
    226,628.14x = 38,981,803,523.01
  5. Step 5: Solve for x
    x = 38,981,803,523.01/226,628.14
  6. Step 6: Final answer
    x = 172,007.78

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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.