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Finding the Fourth Proportional to 226,606.60, 339,942.30 and 76,853.80

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Solution

The fourth proportional to 226,606.60, 339,942.30 and 76,853.80 is: 115,291.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,606.60 : 339,942.30 = 76,853.80 : x
  2. Step 2: Convert to fraction form
    226,606.60/339,942.30 = 76,853.80/x
  3. Step 3: Cross multiply
    226,606.60x = 339,942.30 × 76,853.80
  4. Step 4: Simplify right side
    226,606.60x = 26,125,857,535.74
  5. Step 5: Solve for x
    x = 26,125,857,535.74/226,606.60
  6. Step 6: Final answer
    x = 115,291.69

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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.