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Finding the Fourth Proportional to 143,753.43, 215,616.63 and 67,834.29

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Solution

The fourth proportional to 143,753.43, 215,616.63 and 67,834.29 is: 101,745.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,753.43 : 215,616.63 = 67,834.29 : x
  2. Step 2: Convert to fraction form
    143,753.43/215,616.63 = 67,834.29/x
  3. Step 3: Cross multiply
    143,753.43x = 215,616.63 × 67,834.29
  4. Step 4: Simplify right side
    143,753.43x = 14,626,201,008.24
  5. Step 5: Solve for x
    x = 14,626,201,008.24/143,753.43
  6. Step 6: Final answer
    x = 101,745.06

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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.