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Finding the Fourth Proportional to 168,632.70, 252,992.79 and 89,682

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Solution

The fourth proportional to 168,632.70, 252,992.79 and 89,682 is: 134,546.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,632.70 : 252,992.79 = 89,682 : x
  2. Step 2: Convert to fraction form
    168,632.70/252,992.79 = 89,682/x
  3. Step 3: Cross multiply
    168,632.70x = 252,992.79 × 89,682
  4. Step 4: Simplify right side
    168,632.70x = 22,688,899,392.78
  5. Step 5: Solve for x
    x = 22,688,899,392.78/168,632.70
  6. Step 6: Final answer
    x = 134,546.26

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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.