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Finding the Fourth Proportional to 216,625.62, 324,800 and 104,081.88

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Solution

The fourth proportional to 216,625.62, 324,800 and 104,081.88 is: 156,056.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,625.62 : 324,800 = 104,081.88 : x
  2. Step 2: Convert to fraction form
    216,625.62/324,800 = 104,081.88/x
  3. Step 3: Cross multiply
    216,625.62x = 324,800 × 104,081.88
  4. Step 4: Simplify right side
    216,625.62x = 33,805,794,624
  5. Step 5: Solve for x
    x = 33,805,794,624/216,625.62
  6. Step 6: Final answer
    x = 156,056.31

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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.