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Finding the Fourth Proportional to 79,686.72, 119,495.52 and 27,082.08

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Solution

The fourth proportional to 79,686.72, 119,495.52 and 27,082.08 is: 40,611.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,686.72 : 119,495.52 = 27,082.08 : x
  2. Step 2: Convert to fraction form
    79,686.72/119,495.52 = 27,082.08/x
  3. Step 3: Cross multiply
    79,686.72x = 119,495.52 × 27,082.08
  4. Step 4: Simplify right side
    79,686.72x = 3,236,187,232.28
  5. Step 5: Solve for x
    x = 3,236,187,232.28/79,686.72
  6. Step 6: Final answer
    x = 40,611.37

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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.