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Finding the Fourth Proportional to 79,082.52, 109,130.63 and 47,268.96

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Solution

The fourth proportional to 79,082.52, 109,130.63 and 47,268.96 is: 65,229.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,082.52 : 109,130.63 = 47,268.96 : x
  2. Step 2: Convert to fraction form
    79,082.52/109,130.63 = 47,268.96/x
  3. Step 3: Cross multiply
    79,082.52x = 109,130.63 × 47,268.96
  4. Step 4: Simplify right side
    79,082.52x = 5,158,491,147.90
  5. Step 5: Solve for x
    x = 5,158,491,147.90/79,082.52
  6. Step 6: Final answer
    x = 65,229.22

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.