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Finding the Fourth Proportional to 111,381.84, 167,138.04 and 44,811.60

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Solution

The fourth proportional to 111,381.84, 167,138.04 and 44,811.60 is: 67,243.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,381.84 : 167,138.04 = 44,811.60 : x
  2. Step 2: Convert to fraction form
    111,381.84/167,138.04 = 44,811.60/x
  3. Step 3: Cross multiply
    111,381.84x = 167,138.04 × 44,811.60
  4. Step 4: Simplify right side
    111,381.84x = 7,489,722,993.26
  5. Step 5: Solve for x
    x = 7,489,722,993.26/111,381.84
  6. Step 6: Final answer
    x = 67,243.66

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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.