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Finding the Fourth Proportional to 180,832.40, 271,054.20 and 68,469.20

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Solution

The fourth proportional to 180,832.40, 271,054.20 and 68,469.20 is: 102,630.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,832.40 : 271,054.20 = 68,469.20 : x
  2. Step 2: Convert to fraction form
    180,832.40/271,054.20 = 68,469.20/x
  3. Step 3: Cross multiply
    180,832.40x = 271,054.20 × 68,469.20
  4. Step 4: Simplify right side
    180,832.40x = 18,558,864,230.64
  5. Step 5: Solve for x
    x = 18,558,864,230.64/180,832.40
  6. Step 6: Final answer
    x = 102,630.19

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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.