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Finding the Fourth Proportional to 117,791.22, 176,619.69 and 80,396.56

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Solution

The fourth proportional to 117,791.22, 176,619.69 and 80,396.56 is: 120,549.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,791.22 : 176,619.69 = 80,396.56 : x
  2. Step 2: Convert to fraction form
    117,791.22/176,619.69 = 80,396.56/x
  3. Step 3: Cross multiply
    117,791.22x = 176,619.69 × 80,396.56
  4. Step 4: Simplify right side
    117,791.22x = 14,199,615,725.04
  5. Step 5: Solve for x
    x = 14,199,615,725.04/117,791.22
  6. Step 6: Final answer
    x = 120,549.01

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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.