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Finding the Fourth Proportional to 226,357.76, 339,679.38 and 126,583.40

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Solution

The fourth proportional to 226,357.76, 339,679.38 and 126,583.40 is: 189,954.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,357.76 : 339,679.38 = 126,583.40 : x
  2. Step 2: Convert to fraction form
    226,357.76/339,679.38 = 126,583.40/x
  3. Step 3: Cross multiply
    226,357.76x = 339,679.38 × 126,583.40
  4. Step 4: Simplify right side
    226,357.76x = 42,997,770,830.29
  5. Step 5: Solve for x
    x = 42,997,770,830.29/226,357.76
  6. Step 6: Final answer
    x = 189,954.92

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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.