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Finding the Fourth Proportional to 167,888.94, 251,920.89 and 74,372.82

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Solution

The fourth proportional to 167,888.94, 251,920.89 and 74,372.82 is: 111,597.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,888.94 : 251,920.89 = 74,372.82 : x
  2. Step 2: Convert to fraction form
    167,888.94/251,920.89 = 74,372.82/x
  3. Step 3: Cross multiply
    167,888.94x = 251,920.89 × 74,372.82
  4. Step 4: Simplify right side
    167,888.94x = 18,736,067,006.21
  5. Step 5: Solve for x
    x = 18,736,067,006.21/167,888.94
  6. Step 6: Final answer
    x = 111,597.98

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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.