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Finding the Fourth Proportional to 68,832.76, 103,236.82 and 43,798.44

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Solution

The fourth proportional to 68,832.76, 103,236.82 and 43,798.44 is: 65,689.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,832.76 : 103,236.82 = 43,798.44 : x
  2. Step 2: Convert to fraction form
    68,832.76/103,236.82 = 43,798.44/x
  3. Step 3: Cross multiply
    68,832.76x = 103,236.82 × 43,798.44
  4. Step 4: Simplify right side
    68,832.76x = 4,521,611,447.57
  5. Step 5: Solve for x
    x = 4,521,611,447.57/68,832.76
  6. Step 6: Final answer
    x = 65,689.82

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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.