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Finding the Fourth Proportional to 324,859.26, 487,322.31 and 122,625.71

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Solution

The fourth proportional to 324,859.26, 487,322.31 and 122,625.71 is: 183,951.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,859.26 : 487,322.31 = 122,625.71 : x
  2. Step 2: Convert to fraction form
    324,859.26/487,322.31 = 122,625.71/x
  3. Step 3: Cross multiply
    324,859.26x = 487,322.31 × 122,625.71
  4. Step 4: Simplify right side
    324,859.26x = 59,758,241,825.98
  5. Step 5: Solve for x
    x = 59,758,241,825.98/324,859.26
  6. Step 6: Final answer
    x = 183,951.17

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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.