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Finding the Fourth Proportional to 321,758.39, 482,448.32 and 122,092.82

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Solution

The fourth proportional to 321,758.39, 482,448.32 and 122,092.82 is: 183,067.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,758.39 : 482,448.32 = 122,092.82 : x
  2. Step 2: Convert to fraction form
    321,758.39/482,448.32 = 122,092.82/x
  3. Step 3: Cross multiply
    321,758.39x = 482,448.32 × 122,092.82
  4. Step 4: Simplify right side
    321,758.39x = 58,903,472,870.36
  5. Step 5: Solve for x
    x = 58,903,472,870.36/321,758.39
  6. Step 6: Final answer
    x = 183,067.41

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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.