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Finding the Fourth Proportional to 79,608.64, 119,408.16 and 29,679.04

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Solution

The fourth proportional to 79,608.64, 119,408.16 and 29,679.04 is: 44,516.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,608.64 : 119,408.16 = 29,679.04 : x
  2. Step 2: Convert to fraction form
    79,608.64/119,408.16 = 29,679.04/x
  3. Step 3: Cross multiply
    79,608.64x = 119,408.16 × 29,679.04
  4. Step 4: Simplify right side
    79,608.64x = 3,543,919,556.97
  5. Step 5: Solve for x
    x = 3,543,919,556.97/79,608.64
  6. Step 6: Final answer
    x = 44,516.77

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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.