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Finding the Fourth Proportional to 71,082.07, 106,660.01 and 28,993.03

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Solution

The fourth proportional to 71,082.07, 106,660.01 and 28,993.03 is: 43,504.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,082.07 : 106,660.01 = 28,993.03 : x
  2. Step 2: Convert to fraction form
    71,082.07/106,660.01 = 28,993.03/x
  3. Step 3: Cross multiply
    71,082.07x = 106,660.01 × 28,993.03
  4. Step 4: Simplify right side
    71,082.07x = 3,092,396,869.73
  5. Step 5: Solve for x
    x = 3,092,396,869.73/71,082.07
  6. Step 6: Final answer
    x = 43,504.60

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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.