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Finding the Fourth Proportional to 218,773.38, 328,162.74 and 60,992.28

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Solution

The fourth proportional to 218,773.38, 328,162.74 and 60,992.28 is: 91,489.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,773.38 : 328,162.74 = 60,992.28 : x
  2. Step 2: Convert to fraction form
    218,773.38/328,162.74 = 60,992.28/x
  3. Step 3: Cross multiply
    218,773.38x = 328,162.74 × 60,992.28
  4. Step 4: Simplify right side
    218,773.38x = 20,015,393,723.65
  5. Step 5: Solve for x
    x = 20,015,393,723.65/218,773.38
  6. Step 6: Final answer
    x = 91,489.16

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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.