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Finding the Fourth Proportional to 89,955.54, 134,908.70 and 33,791.31

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Solution

The fourth proportional to 89,955.54, 134,908.70 and 33,791.31 is: 50,677.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,955.54 : 134,908.70 = 33,791.31 : x
  2. Step 2: Convert to fraction form
    89,955.54/134,908.70 = 33,791.31/x
  3. Step 3: Cross multiply
    89,955.54x = 134,908.70 × 33,791.31
  4. Step 4: Simplify right side
    89,955.54x = 4,558,741,534.44
  5. Step 5: Solve for x
    x = 4,558,741,534.44/89,955.54
  6. Step 6: Final answer
    x = 50,677.72

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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.