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Finding the Fourth Proportional to 192,732.70, 288,975.72 and 92,693.66

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Solution

The fourth proportional to 192,732.70, 288,975.72 and 92,693.66 is: 138,981.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,732.70 : 288,975.72 = 92,693.66 : x
  2. Step 2: Convert to fraction form
    192,732.70/288,975.72 = 92,693.66/x
  3. Step 3: Cross multiply
    192,732.70x = 288,975.72 × 92,693.66
  4. Step 4: Simplify right side
    192,732.70x = 26,786,217,137.94
  5. Step 5: Solve for x
    x = 26,786,217,137.94/192,732.70
  6. Step 6: Final answer
    x = 138,981.18

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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.