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Finding the Fourth Proportional to 259,033.26, 388,571.88 and 72,044.76

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Solution

The fourth proportional to 259,033.26, 388,571.88 and 72,044.76 is: 108,073.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,033.26 : 388,571.88 = 72,044.76 : x
  2. Step 2: Convert to fraction form
    259,033.26/388,571.88 = 72,044.76/x
  3. Step 3: Cross multiply
    259,033.26x = 388,571.88 × 72,044.76
  4. Step 4: Simplify right side
    259,033.26x = 27,994,567,837.35
  5. Step 5: Solve for x
    x = 27,994,567,837.35/259,033.26
  6. Step 6: Final answer
    x = 108,073.26

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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.