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Finding the Fourth Proportional to 119,183.88, 178,841.48 and 72,469.56

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Solution

The fourth proportional to 119,183.88, 178,841.48 and 72,469.56 is: 108,744.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,183.88 : 178,841.48 = 72,469.56 : x
  2. Step 2: Convert to fraction form
    119,183.88/178,841.48 = 72,469.56/x
  3. Step 3: Cross multiply
    119,183.88x = 178,841.48 × 72,469.56
  4. Step 4: Simplify right side
    119,183.88x = 12,960,563,365.35
  5. Step 5: Solve for x
    x = 12,960,563,365.35/119,183.88
  6. Step 6: Final answer
    x = 108,744.26

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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.