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Finding the Fourth Proportional to 192,610.85, 288,894.38 and 74,272.28

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Solution

The fourth proportional to 192,610.85, 288,894.38 and 74,272.28 is: 111,399.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,610.85 : 288,894.38 = 74,272.28 : x
  2. Step 2: Convert to fraction form
    192,610.85/288,894.38 = 74,272.28/x
  3. Step 3: Cross multiply
    192,610.85x = 288,894.38 × 74,272.28
  4. Step 4: Simplify right side
    192,610.85x = 21,456,842,465.95
  5. Step 5: Solve for x
    x = 21,456,842,465.95/192,610.85
  6. Step 6: Final answer
    x = 111,399.97

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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.