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Finding the Fourth Proportional to 220,966.34, 331,449.33 and 54,754.34

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Solution

The fourth proportional to 220,966.34, 331,449.33 and 54,754.34 is: 82,131.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,966.34 : 331,449.33 = 54,754.34 : x
  2. Step 2: Convert to fraction form
    220,966.34/331,449.33 = 54,754.34/x
  3. Step 3: Cross multiply
    220,966.34x = 331,449.33 × 54,754.34
  4. Step 4: Simplify right side
    220,966.34x = 18,148,289,307.59
  5. Step 5: Solve for x
    x = 18,148,289,307.59/220,966.34
  6. Step 6: Final answer
    x = 82,131.47

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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.