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Finding the Fourth Proportional to 68,989.60, 103,397.86 and 29,500.36

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Solution

The fourth proportional to 68,989.60, 103,397.86 and 29,500.36 is: 44,213.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,989.60 : 103,397.86 = 29,500.36 : x
  2. Step 2: Convert to fraction form
    68,989.60/103,397.86 = 29,500.36/x
  3. Step 3: Cross multiply
    68,989.60x = 103,397.86 × 29,500.36
  4. Step 4: Simplify right side
    68,989.60x = 3,050,274,093.23
  5. Step 5: Solve for x
    x = 3,050,274,093.23/68,989.60
  6. Step 6: Final answer
    x = 44,213.53

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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.