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Finding the Fourth Proportional to 79,795.92, 119,700.54 and 20,632.70

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Solution

The fourth proportional to 79,795.92, 119,700.54 and 20,632.70 is: 30,950.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,795.92 : 119,700.54 = 20,632.70 : x
  2. Step 2: Convert to fraction form
    79,795.92/119,700.54 = 20,632.70/x
  3. Step 3: Cross multiply
    79,795.92x = 119,700.54 × 20,632.70
  4. Step 4: Simplify right side
    79,795.92x = 2,469,745,331.66
  5. Step 5: Solve for x
    x = 2,469,745,331.66/79,795.92
  6. Step 6: Final answer
    x = 30,950.77

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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.