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Finding the Fourth Proportional to 133,367.76, 199,947.78 and 66,773.58

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Solution

The fourth proportional to 133,367.76, 199,947.78 and 66,773.58 is: 100,108.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,367.76 : 199,947.78 = 66,773.58 : x
  2. Step 2: Convert to fraction form
    133,367.76/199,947.78 = 66,773.58/x
  3. Step 3: Cross multiply
    133,367.76x = 199,947.78 × 66,773.58
  4. Step 4: Simplify right side
    133,367.76x = 13,351,229,083.65
  5. Step 5: Solve for x
    x = 13,351,229,083.65/133,367.76
  6. Step 6: Final answer
    x = 100,108.37

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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.