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Finding the Fourth Proportional to 67,480.56, 101,203.16 and 20,082.87

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Solution

The fourth proportional to 67,480.56, 101,203.16 and 20,082.87 is: 30,119.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,480.56 : 101,203.16 = 20,082.87 : x
  2. Step 2: Convert to fraction form
    67,480.56/101,203.16 = 20,082.87/x
  3. Step 3: Cross multiply
    67,480.56x = 101,203.16 × 20,082.87
  4. Step 4: Simplify right side
    67,480.56x = 2,032,449,805.45
  5. Step 5: Solve for x
    x = 2,032,449,805.45/67,480.56
  6. Step 6: Final answer
    x = 30,119.04

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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.