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Finding the Fourth Proportional to 192,433.73, 288,446.47 and 74,053.85

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Solution

The fourth proportional to 192,433.73, 288,446.47 and 74,053.85 is: 111,002.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,433.73 : 288,446.47 = 74,053.85 : x
  2. Step 2: Convert to fraction form
    192,433.73/288,446.47 = 74,053.85/x
  3. Step 3: Cross multiply
    192,433.73x = 288,446.47 × 74,053.85
  4. Step 4: Simplify right side
    192,433.73x = 21,360,569,995.04
  5. Step 5: Solve for x
    x = 21,360,569,995.04/192,433.73
  6. Step 6: Final answer
    x = 111,002.22

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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.