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Finding the Fourth Proportional to 111,375.88, 167,074.38 and 40,316.44

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Solution

The fourth proportional to 111,375.88, 167,074.38 and 40,316.44 is: 60,478.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,375.88 : 167,074.38 = 40,316.44 : x
  2. Step 2: Convert to fraction form
    111,375.88/167,074.38 = 40,316.44/x
  3. Step 3: Cross multiply
    111,375.88x = 167,074.38 × 40,316.44
  4. Step 4: Simplify right side
    111,375.88x = 6,735,844,216.81
  5. Step 5: Solve for x
    x = 6,735,844,216.81/111,375.88
  6. Step 6: Final answer
    x = 60,478.48

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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.