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Finding the Fourth Proportional to 79,711.84, 119,566.48 and 27,157.92

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Solution

The fourth proportional to 79,711.84, 119,566.48 and 27,157.92 is: 40,736.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,711.84 : 119,566.48 = 27,157.92 : x
  2. Step 2: Convert to fraction form
    79,711.84/119,566.48 = 27,157.92/x
  3. Step 3: Cross multiply
    79,711.84x = 119,566.48 × 27,157.92
  4. Step 4: Simplify right side
    79,711.84x = 3,247,176,898.52
  5. Step 5: Solve for x
    x = 3,247,176,898.52/79,711.84
  6. Step 6: Final answer
    x = 40,736.44

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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.