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Finding the Fourth Proportional to 79,792.42, 119,715.96 and 27,238.81

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Solution

The fourth proportional to 79,792.42, 119,715.96 and 27,238.81 is: 40,867.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,792.42 : 119,715.96 = 27,238.81 : x
  2. Step 2: Convert to fraction form
    79,792.42/119,715.96 = 27,238.81/x
  3. Step 3: Cross multiply
    79,792.42x = 119,715.96 × 27,238.81
  4. Step 4: Simplify right side
    79,792.42x = 3,260,920,091.26
  5. Step 5: Solve for x
    x = 3,260,920,091.26/79,792.42
  6. Step 6: Final answer
    x = 40,867.54

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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.