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Finding the Fourth Proportional to 68,611.62, 102,753.12 and 43,573.32

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Solution

The fourth proportional to 68,611.62, 102,753.12 and 43,573.32 is: 65,255.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,611.62 : 102,753.12 = 43,573.32 : x
  2. Step 2: Convert to fraction form
    68,611.62/102,753.12 = 43,573.32/x
  3. Step 3: Cross multiply
    68,611.62x = 102,753.12 × 43,573.32
  4. Step 4: Simplify right side
    68,611.62x = 4,477,294,578.76
  5. Step 5: Solve for x
    x = 4,477,294,578.76/68,611.62
  6. Step 6: Final answer
    x = 65,255.63

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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.