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Finding the Fourth Proportional to 133,838.13, 200,758.29 and 43,879.53

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Solution

The fourth proportional to 133,838.13, 200,758.29 and 43,879.53 is: 65,819.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,838.13 : 200,758.29 = 43,879.53 : x
  2. Step 2: Convert to fraction form
    133,838.13/200,758.29 = 43,879.53/x
  3. Step 3: Cross multiply
    133,838.13x = 200,758.29 × 43,879.53
  4. Step 4: Simplify right side
    133,838.13x = 8,809,179,408.80
  5. Step 5: Solve for x
    x = 8,809,179,408.80/133,838.13
  6. Step 6: Final answer
    x = 65,819.65

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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.