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Finding the Fourth Proportional to 220,955.60, 331,433.04 and 54,743.60

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Solution

The fourth proportional to 220,955.60, 331,433.04 and 54,743.60 is: 82,115.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,955.60 : 331,433.04 = 54,743.60 : x
  2. Step 2: Convert to fraction form
    220,955.60/331,433.04 = 54,743.60/x
  3. Step 3: Cross multiply
    220,955.60x = 331,433.04 × 54,743.60
  4. Step 4: Simplify right side
    220,955.60x = 18,143,837,768.54
  5. Step 5: Solve for x
    x = 18,143,837,768.54/220,955.60
  6. Step 6: Final answer
    x = 82,115.31

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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.