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Finding the Fourth Proportional to 95,603.94, 131,969.52 and 82,121.22

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Solution

The fourth proportional to 95,603.94, 131,969.52 and 82,121.22 is: 113,358.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,603.94 : 131,969.52 = 82,121.22 : x
  2. Step 2: Convert to fraction form
    95,603.94/131,969.52 = 82,121.22/x
  3. Step 3: Cross multiply
    95,603.94x = 131,969.52 × 82,121.22
  4. Step 4: Simplify right side
    95,603.94x = 10,837,497,985.21
  5. Step 5: Solve for x
    x = 10,837,497,985.21/95,603.94
  6. Step 6: Final answer
    x = 113,358.28

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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.