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Finding the Fourth Proportional to 212,797.26, 319,245.57 and 72,556.02

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Solution

The fourth proportional to 212,797.26, 319,245.57 and 72,556.02 is: 108,850.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,797.26 : 319,245.57 = 72,556.02 : x
  2. Step 2: Convert to fraction form
    212,797.26/319,245.57 = 72,556.02/x
  3. Step 3: Cross multiply
    212,797.26x = 319,245.57 × 72,556.02
  4. Step 4: Simplify right side
    212,797.26x = 23,163,187,961.83
  5. Step 5: Solve for x
    x = 23,163,187,961.83/212,797.26
  6. Step 6: Final answer
    x = 108,850.97

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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.