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Finding the Fourth Proportional to 117,767.37, 176,584.16 and 80,372.75

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Solution

The fourth proportional to 117,767.37, 176,584.16 and 80,372.75 is: 120,513.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,767.37 : 176,584.16 = 80,372.75 : x
  2. Step 2: Convert to fraction form
    117,767.37/176,584.16 = 80,372.75/x
  3. Step 3: Cross multiply
    117,767.37x = 176,584.16 × 80,372.75
  4. Step 4: Simplify right side
    117,767.37x = 14,192,555,188.03
  5. Step 5: Solve for x
    x = 14,192,555,188.03/117,767.37
  6. Step 6: Final answer
    x = 120,513.48

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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.