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Finding the Fourth Proportional to 111,912.60, 167,811.30 and 41,755.80

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Solution

The fourth proportional to 111,912.60, 167,811.30 and 41,755.80 is: 62,612.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,912.60 : 167,811.30 = 41,755.80 : x
  2. Step 2: Convert to fraction form
    111,912.60/167,811.30 = 41,755.80/x
  3. Step 3: Cross multiply
    111,912.60x = 167,811.30 × 41,755.80
  4. Step 4: Simplify right side
    111,912.60x = 7,007,095,080.54
  5. Step 5: Solve for x
    x = 7,007,095,080.54/111,912.60
  6. Step 6: Final answer
    x = 62,612.21

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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.