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Finding the Fourth Proportional to 342,226.86, 512,912.61 and 164,686.20

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Solution

The fourth proportional to 342,226.86, 512,912.61 and 164,686.20 is: 246,823.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,226.86 : 512,912.61 = 164,686.20 : x
  2. Step 2: Convert to fraction form
    342,226.86/512,912.61 = 164,686.20/x
  3. Step 3: Cross multiply
    342,226.86x = 512,912.61 × 164,686.20
  4. Step 4: Simplify right side
    342,226.86x = 84,469,628,672.98
  5. Step 5: Solve for x
    x = 84,469,628,672.98/342,226.86
  6. Step 6: Final answer
    x = 246,823.49

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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.