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Finding the Fourth Proportional to 96,603, 133,286.91 and 55,757.13

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Solution

The fourth proportional to 96,603, 133,286.91 and 55,757.13 is: 76,930.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,603 : 133,286.91 = 55,757.13 : x
  2. Step 2: Convert to fraction form
    96,603/133,286.91 = 55,757.13/x
  3. Step 3: Cross multiply
    96,603x = 133,286.91 × 55,757.13
  4. Step 4: Simplify right side
    96,603x = 7,431,695,568.17
  5. Step 5: Solve for x
    x = 7,431,695,568.17/96,603
  6. Step 6: Final answer
    x = 76,930.28

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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.