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Finding the Fourth Proportional to 220,893.75, 331,340.63 and 54,681.75

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Solution

The fourth proportional to 220,893.75, 331,340.63 and 54,681.75 is: 82,022.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,893.75 : 331,340.63 = 54,681.75 : x
  2. Step 2: Convert to fraction form
    220,893.75/331,340.63 = 54,681.75/x
  3. Step 3: Cross multiply
    220,893.75x = 331,340.63 × 54,681.75
  4. Step 4: Simplify right side
    220,893.75x = 18,118,285,221.09
  5. Step 5: Solve for x
    x = 18,118,285,221.09/220,893.75
  6. Step 6: Final answer
    x = 82,022.63

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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.