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Finding the Fourth Proportional to 117,067.55, 161,553.21 and 63,352.57

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Solution

The fourth proportional to 117,067.55, 161,553.21 and 63,352.57 is: 87,426.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,067.55 : 161,553.21 = 63,352.57 : x
  2. Step 2: Convert to fraction form
    117,067.55/161,553.21 = 63,352.57/x
  3. Step 3: Cross multiply
    117,067.55x = 161,553.21 × 63,352.57
  4. Step 4: Simplify right side
    117,067.55x = 10,234,810,706.71
  5. Step 5: Solve for x
    x = 10,234,810,706.71/117,067.55
  6. Step 6: Final answer
    x = 87,426.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.