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Finding the Fourth Proportional to 250,704.21, 345,976.50 and 153,859.52

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Solution

The fourth proportional to 250,704.21, 345,976.50 and 153,859.52 is: 212,329.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,704.21 : 345,976.50 = 153,859.52 : x
  2. Step 2: Convert to fraction form
    250,704.21/345,976.50 = 153,859.52/x
  3. Step 3: Cross multiply
    250,704.21x = 345,976.50 × 153,859.52
  4. Step 4: Simplify right side
    250,704.21x = 53,231,777,451.98
  5. Step 5: Solve for x
    x = 53,231,777,451.98/250,704.21
  6. Step 6: Final answer
    x = 212,329.01

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.