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Finding the Fourth Proportional to 96,692.70, 133,434.92 and 53,672.57

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Solution

The fourth proportional to 96,692.70, 133,434.92 and 53,672.57 is: 74,067.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,692.70 : 133,434.92 = 53,672.57 : x
  2. Step 2: Convert to fraction form
    96,692.70/133,434.92 = 53,672.57/x
  3. Step 3: Cross multiply
    96,692.70x = 133,434.92 × 53,672.57
  4. Step 4: Simplify right side
    96,692.70x = 7,161,795,149.37
  5. Step 5: Solve for x
    x = 7,161,795,149.37/96,692.70
  6. Step 6: Final answer
    x = 74,067.59

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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.