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Finding the Fourth Proportional to 96,469.75, 133,128.29 and 54,028.29

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Solution

The fourth proportional to 96,469.75, 133,128.29 and 54,028.29 is: 74,559.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,469.75 : 133,128.29 = 54,028.29 : x
  2. Step 2: Convert to fraction form
    96,469.75/133,128.29 = 54,028.29/x
  3. Step 3: Cross multiply
    96,469.75x = 133,128.29 × 54,028.29
  4. Step 4: Simplify right side
    96,469.75x = 7,192,693,859.32
  5. Step 5: Solve for x
    x = 7,192,693,859.32/96,469.75
  6. Step 6: Final answer
    x = 74,559.06

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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.