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Finding the Fourth Proportional to 220,969.84, 331,454.58 and 54,757.84

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Solution

The fourth proportional to 220,969.84, 331,454.58 and 54,757.84 is: 82,136.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,969.84 : 331,454.58 = 54,757.84 : x
  2. Step 2: Convert to fraction form
    220,969.84/331,454.58 = 54,757.84/x
  3. Step 3: Cross multiply
    220,969.84x = 331,454.58 × 54,757.84
  4. Step 4: Simplify right side
    220,969.84x = 18,149,736,858.91
  5. Step 5: Solve for x
    x = 18,149,736,858.91/220,969.84
  6. Step 6: Final answer
    x = 82,136.72

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1.5x scale

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.