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Finding the Fourth Proportional to 79,422.69, 119,134.08 and 49,861.29

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Solution

The fourth proportional to 79,422.69, 119,134.08 and 49,861.29 is: 74,791.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,422.69 : 119,134.08 = 49,861.29 : x
  2. Step 2: Convert to fraction form
    79,422.69/119,134.08 = 49,861.29/x
  3. Step 3: Cross multiply
    79,422.69x = 119,134.08 × 49,861.29
  4. Step 4: Simplify right side
    79,422.69x = 5,940,178,911.76
  5. Step 5: Solve for x
    x = 5,940,178,911.76/79,422.69
  6. Step 6: Final answer
    x = 74,791.96

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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.