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Finding the Fourth Proportional to 271,608.60, 407,121.30 and 103,063.80

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Solution

The fourth proportional to 271,608.60, 407,121.30 and 103,063.80 is: 154,485.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,608.60 : 407,121.30 = 103,063.80 : x
  2. Step 2: Convert to fraction form
    271,608.60/407,121.30 = 103,063.80/x
  3. Step 3: Cross multiply
    271,608.60x = 407,121.30 × 103,063.80
  4. Step 4: Simplify right side
    271,608.60x = 41,959,468,238.94
  5. Step 5: Solve for x
    x = 41,959,468,238.94/271,608.60
  6. Step 6: Final answer
    x = 154,485.05

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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.