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Finding the Fourth Proportional to 119,893.82, 165,453.50 and 66,178.85

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Solution

The fourth proportional to 119,893.82, 165,453.50 and 66,178.85 is: 91,326.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,893.82 : 165,453.50 = 66,178.85 : x
  2. Step 2: Convert to fraction form
    119,893.82/165,453.50 = 66,178.85/x
  3. Step 3: Cross multiply
    119,893.82x = 165,453.50 × 66,178.85
  4. Step 4: Simplify right side
    119,893.82x = 10,949,522,441.21
  5. Step 5: Solve for x
    x = 10,949,522,441.21/119,893.82
  6. Step 6: Final answer
    x = 91,326.83

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.