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Finding the Fourth Proportional to 68,003.20, 101,905.20 and 60,983.20

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Solution

The fourth proportional to 68,003.20, 101,905.20 and 60,983.20 is: 91,385.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,003.20 : 101,905.20 = 60,983.20 : x
  2. Step 2: Convert to fraction form
    68,003.20/101,905.20 = 60,983.20/x
  3. Step 3: Cross multiply
    68,003.20x = 101,905.20 × 60,983.20
  4. Step 4: Simplify right side
    68,003.20x = 6,214,505,192.64
  5. Step 5: Solve for x
    x = 6,214,505,192.64/68,003.20
  6. Step 6: Final answer
    x = 91,385.48

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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.