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Finding the Fourth Proportional to 111,874.20, 167,811.30 and 107,573.40

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Solution

The fourth proportional to 111,874.20, 167,811.30 and 107,573.40 is: 161,360.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,874.20 : 167,811.30 = 107,573.40 : x
  2. Step 2: Convert to fraction form
    111,874.20/167,811.30 = 107,573.40/x
  3. Step 3: Cross multiply
    111,874.20x = 167,811.30 × 107,573.40
  4. Step 4: Simplify right side
    111,874.20x = 18,052,032,099.42
  5. Step 5: Solve for x
    x = 18,052,032,099.42/111,874.20
  6. Step 6: Final answer
    x = 161,360.10

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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.