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Finding the Fourth Proportional to 217,963.13, 300,912.44 and 141,550.56

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Solution

The fourth proportional to 217,963.13, 300,912.44 and 141,550.56 is: 195,419.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,963.13 : 300,912.44 = 141,550.56 : x
  2. Step 2: Convert to fraction form
    217,963.13/300,912.44 = 141,550.56/x
  3. Step 3: Cross multiply
    217,963.13x = 300,912.44 × 141,550.56
  4. Step 4: Simplify right side
    217,963.13x = 42,594,323,685.21
  5. Step 5: Solve for x
    x = 42,594,323,685.21/217,963.13
  6. Step 6: Final answer
    x = 195,419.86

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.