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Finding the Fourth Proportional to 192,607.20, 288,858.96 and 67,932

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Solution

The fourth proportional to 192,607.20, 288,858.96 and 67,932 is: 101,879.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,607.20 : 288,858.96 = 67,932 : x
  2. Step 2: Convert to fraction form
    192,607.20/288,858.96 = 67,932/x
  3. Step 3: Cross multiply
    192,607.20x = 288,858.96 × 67,932
  4. Step 4: Simplify right side
    192,607.20x = 19,622,766,870.72
  5. Step 5: Solve for x
    x = 19,622,766,870.72/192,607.20
  6. Step 6: Final answer
    x = 101,879.72

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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.