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Finding the Fourth Proportional to 111,645.96, 167,493.60 and 36,789.20

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Solution

The fourth proportional to 111,645.96, 167,493.60 and 36,789.20 is: 55,191.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,645.96 : 167,493.60 = 36,789.20 : x
  2. Step 2: Convert to fraction form
    111,645.96/167,493.60 = 36,789.20/x
  3. Step 3: Cross multiply
    111,645.96x = 167,493.60 × 36,789.20
  4. Step 4: Simplify right side
    111,645.96x = 6,161,955,549.12
  5. Step 5: Solve for x
    x = 6,161,955,549.12/111,645.96
  6. Step 6: Final answer
    x = 55,191.93

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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.