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Finding the Fourth Proportional to 68,768.37, 103,158.02 and 29,325.82

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Solution

The fourth proportional to 68,768.37, 103,158.02 and 29,325.82 is: 43,991.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,768.37 : 103,158.02 = 29,325.82 : x
  2. Step 2: Convert to fraction form
    68,768.37/103,158.02 = 29,325.82/x
  3. Step 3: Cross multiply
    68,768.37x = 103,158.02 × 29,325.82
  4. Step 4: Simplify right side
    68,768.37x = 3,025,193,526.08
  5. Step 5: Solve for x
    x = 3,025,193,526.08/68,768.37
  6. Step 6: Final answer
    x = 43,991.06

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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.