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Finding the Fourth Proportional to 204,339.62, 306,650.37 and 71,220.98

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Solution

The fourth proportional to 204,339.62, 306,650.37 and 71,220.98 is: 106,880.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,339.62 : 306,650.37 = 71,220.98 : x
  2. Step 2: Convert to fraction form
    204,339.62/306,650.37 = 71,220.98/x
  3. Step 3: Cross multiply
    204,339.62x = 306,650.37 × 71,220.98
  4. Step 4: Simplify right side
    204,339.62x = 21,839,939,868.76
  5. Step 5: Solve for x
    x = 21,839,939,868.76/204,339.62
  6. Step 6: Final answer
    x = 106,880.59

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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.