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Finding the Fourth Proportional to 226,479.40, 339,978.30 and 133,037.80

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Solution

The fourth proportional to 226,479.40, 339,978.30 and 133,037.80 is: 199,708.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,479.40 : 339,978.30 = 133,037.80 : x
  2. Step 2: Convert to fraction form
    226,479.40/339,978.30 = 133,037.80/x
  3. Step 3: Cross multiply
    226,479.40x = 339,978.30 × 133,037.80
  4. Step 4: Simplify right side
    226,479.40x = 45,229,965,079.74
  5. Step 5: Solve for x
    x = 45,229,965,079.74/226,479.40
  6. Step 6: Final answer
    x = 199,708.96

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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.