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Finding the Fourth Proportional to 220,372.66, 330,046.26 and 214,311.70

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Solution

The fourth proportional to 220,372.66, 330,046.26 and 214,311.70 is: 320,968.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,372.66 : 330,046.26 = 214,311.70 : x
  2. Step 2: Convert to fraction form
    220,372.66/330,046.26 = 214,311.70/x
  3. Step 3: Cross multiply
    220,372.66x = 330,046.26 × 214,311.70
  4. Step 4: Simplify right side
    220,372.66x = 70,732,775,059.24
  5. Step 5: Solve for x
    x = 70,732,775,059.24/220,372.66
  6. Step 6: Final answer
    x = 320,968.92

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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.