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Finding the Fourth Proportional to 206,087.67, 308,674.80 and 158,351.40

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Solution

The fourth proportional to 206,087.67, 308,674.80 and 158,351.40 is: 237,176.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    206,087.67 : 308,674.80 = 158,351.40 : x
  2. Step 2: Convert to fraction form
    206,087.67/308,674.80 = 158,351.40/x
  3. Step 3: Cross multiply
    206,087.67x = 308,674.80 × 158,351.40
  4. Step 4: Simplify right side
    206,087.67x = 48,879,086,724.72
  5. Step 5: Solve for x
    x = 48,879,086,724.72/206,087.67
  6. Step 6: Final answer
    x = 237,176.18

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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.