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Finding the Fourth Proportional to 226,878.87, 340,238.97 and 66,912.37

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Solution

The fourth proportional to 226,878.87, 340,238.97 and 66,912.37 is: 100,345.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,878.87 : 340,238.97 = 66,912.37 : x
  2. Step 2: Convert to fraction form
    226,878.87/340,238.97 = 66,912.37/x
  3. Step 3: Cross multiply
    226,878.87x = 340,238.97 × 66,912.37
  4. Step 4: Simplify right side
    226,878.87x = 22,766,195,514.50
  5. Step 5: Solve for x
    x = 22,766,195,514.50/226,878.87
  6. Step 6: Final answer
    x = 100,345.16

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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.