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Finding the Fourth Proportional to 226,612.69, 339,846.44 and 74,775.81

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Solution

The fourth proportional to 226,612.69, 339,846.44 and 74,775.81 is: 112,139.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,612.69 : 339,846.44 = 74,775.81 : x
  2. Step 2: Convert to fraction form
    226,612.69/339,846.44 = 74,775.81/x
  3. Step 3: Cross multiply
    226,612.69x = 339,846.44 × 74,775.81
  4. Step 4: Simplify right side
    226,612.69x = 25,412,291,815.53
  5. Step 5: Solve for x
    x = 25,412,291,815.53/226,612.69
  6. Step 6: Final answer
    x = 112,139.76

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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.