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Finding the Fourth Proportional to 79,672.20, 119,452.91 and 35,274.71

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Solution

The fourth proportional to 79,672.20, 119,452.91 and 35,274.71 is: 52,887.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,672.20 : 119,452.91 = 35,274.71 : x
  2. Step 2: Convert to fraction form
    79,672.20/119,452.91 = 35,274.71/x
  3. Step 3: Cross multiply
    79,672.20x = 119,452.91 × 35,274.71
  4. Step 4: Simplify right side
    79,672.20x = 4,213,665,985.27
  5. Step 5: Solve for x
    x = 4,213,665,985.27/79,672.20
  6. Step 6: Final answer
    x = 52,887.53

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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.