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Finding the Fourth Proportional to 111,203.18, 166,809.78 and 36,327.89

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Solution

The fourth proportional to 111,203.18, 166,809.78 and 36,327.89 is: 54,493.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,203.18 : 166,809.78 = 36,327.89 : x
  2. Step 2: Convert to fraction form
    111,203.18/166,809.78 = 36,327.89/x
  3. Step 3: Cross multiply
    111,203.18x = 166,809.78 × 36,327.89
  4. Step 4: Simplify right side
    111,203.18x = 6,059,847,755.79
  5. Step 5: Solve for x
    x = 6,059,847,755.79/111,203.18
  6. Step 6: Final answer
    x = 54,493.48

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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.