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Finding the Fourth Proportional to 129,796.67, 194,715.58 and 54,917.37

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Solution

The fourth proportional to 129,796.67, 194,715.58 and 54,917.37 is: 82,384.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,796.67 : 194,715.58 = 54,917.37 : x
  2. Step 2: Convert to fraction form
    129,796.67/194,715.58 = 54,917.37/x
  3. Step 3: Cross multiply
    129,796.67x = 194,715.58 × 54,917.37
  4. Step 4: Simplify right side
    129,796.67x = 10,693,267,201.35
  5. Step 5: Solve for x
    x = 10,693,267,201.35/129,796.67
  6. Step 6: Final answer
    x = 82,384.76

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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.