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Finding the Fourth Proportional to 226,651.04, 339,930.48 and 215,410.40

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Solution

The fourth proportional to 226,651.04, 339,930.48 and 215,410.40 is: 323,071.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,651.04 : 339,930.48 = 215,410.40 : x
  2. Step 2: Convert to fraction form
    226,651.04/339,930.48 = 215,410.40/x
  3. Step 3: Cross multiply
    226,651.04x = 339,930.48 × 215,410.40
  4. Step 4: Simplify right side
    226,651.04x = 73,224,560,668.99
  5. Step 5: Solve for x
    x = 73,224,560,668.99/226,651.04
  6. Step 6: Final answer
    x = 323,071.81

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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.