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Finding the Fourth Proportional to 226,898.56, 313,121.60 and 124,921.28

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Solution

The fourth proportional to 226,898.56, 313,121.60 and 124,921.28 is: 172,392.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,898.56 : 313,121.60 = 124,921.28 : x
  2. Step 2: Convert to fraction form
    226,898.56/313,121.60 = 124,921.28/x
  3. Step 3: Cross multiply
    226,898.56x = 313,121.60 × 124,921.28
  4. Step 4: Simplify right side
    226,898.56x = 39,115,551,067.65
  5. Step 5: Solve for x
    x = 39,115,551,067.65/226,898.56
  6. Step 6: Final answer
    x = 172,392.24

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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.