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Finding the Fourth Proportional to 226,138.79, 339,215.69 and 113,757.77

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Solution

The fourth proportional to 226,138.79, 339,215.69 and 113,757.77 is: 170,640.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,138.79 : 339,215.69 = 113,757.77 : x
  2. Step 2: Convert to fraction form
    226,138.79/339,215.69 = 113,757.77/x
  3. Step 3: Cross multiply
    226,138.79x = 339,215.69 × 113,757.77
  4. Step 4: Simplify right side
    226,138.79x = 38,588,421,575.85
  5. Step 5: Solve for x
    x = 38,588,421,575.85/226,138.79
  6. Step 6: Final answer
    x = 170,640.43

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1.5x scale

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.