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Finding the Fourth Proportional to 111,612.40, 167,548.20 and 110,834.80

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Solution

The fourth proportional to 111,612.40, 167,548.20 and 110,834.80 is: 166,380.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,612.40 : 167,548.20 = 110,834.80 : x
  2. Step 2: Convert to fraction form
    111,612.40/167,548.20 = 110,834.80/x
  3. Step 3: Cross multiply
    111,612.40x = 167,548.20 × 110,834.80
  4. Step 4: Simplify right side
    111,612.40x = 18,570,171,237.36
  5. Step 5: Solve for x
    x = 18,570,171,237.36/111,612.40
  6. Step 6: Final answer
    x = 166,380.90

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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.