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Finding the Fourth Proportional to 99,583.52, 149,395.76 and 68,433.44

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Solution

The fourth proportional to 99,583.52, 149,395.76 and 68,433.44 is: 102,664.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,583.52 : 149,395.76 = 68,433.44 : x
  2. Step 2: Convert to fraction form
    99,583.52/149,395.76 = 68,433.44/x
  3. Step 3: Cross multiply
    99,583.52x = 149,395.76 × 68,433.44
  4. Step 4: Simplify right side
    99,583.52x = 10,223,665,778.21
  5. Step 5: Solve for x
    x = 10,223,665,778.21/99,583.52
  6. Step 6: Final answer
    x = 102,664.23

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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.