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Finding the Fourth Proportional to 111,935.10, 167,793.30 and 100,125.30

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Solution

The fourth proportional to 111,935.10, 167,793.30 and 100,125.30 is: 150,090.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,935.10 : 167,793.30 = 100,125.30 : x
  2. Step 2: Convert to fraction form
    111,935.10/167,793.30 = 100,125.30/x
  3. Step 3: Cross multiply
    111,935.10x = 167,793.30 × 100,125.30
  4. Step 4: Simplify right side
    111,935.10x = 16,800,354,500.49
  5. Step 5: Solve for x
    x = 16,800,354,500.49/111,935.10
  6. Step 6: Final answer
    x = 150,090.14

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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.