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Finding the Fourth Proportional to 206,614.01, 285,105.42 and 115,979.94

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Solution

The fourth proportional to 206,614.01, 285,105.42 and 115,979.94 is: 160,040.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,614.01 : 285,105.42 = 115,979.94 : x
  2. Step 2: Convert to fraction form
    206,614.01/285,105.42 = 115,979.94/x
  3. Step 3: Cross multiply
    206,614.01x = 285,105.42 × 115,979.94
  4. Step 4: Simplify right side
    206,614.01x = 33,066,509,505.27
  5. Step 5: Solve for x
    x = 33,066,509,505.27/206,614.01
  6. Step 6: Final answer
    x = 160,040.02

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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.