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Finding the Fourth Proportional to 206,871.44, 285,494.76 and 155,794.10

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Solution

The fourth proportional to 206,871.44, 285,494.76 and 155,794.10 is: 215,005.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,871.44 : 285,494.76 = 155,794.10 : x
  2. Step 2: Convert to fraction form
    206,871.44/285,494.76 = 155,794.10/x
  3. Step 3: Cross multiply
    206,871.44x = 285,494.76 × 155,794.10
  4. Step 4: Simplify right side
    206,871.44x = 44,478,399,188.92
  5. Step 5: Solve for x
    x = 44,478,399,188.92/206,871.44
  6. Step 6: Final answer
    x = 215,005.03

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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.