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Finding the Fourth Proportional to 217,229.53, 325,843.63 and 55,123.26

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Solution

The fourth proportional to 217,229.53, 325,843.63 and 55,123.26 is: 82,684.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,229.53 : 325,843.63 = 55,123.26 : x
  2. Step 2: Convert to fraction form
    217,229.53/325,843.63 = 55,123.26/x
  3. Step 3: Cross multiply
    217,229.53x = 325,843.63 × 55,123.26
  4. Step 4: Simplify right side
    217,229.53x = 17,961,563,135.83
  5. Step 5: Solve for x
    x = 17,961,563,135.83/217,229.53
  6. Step 6: Final answer
    x = 82,684.72

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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.