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Finding the Fourth Proportional to 218,605.94, 327,513.39 and 100,376.18

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Solution

The fourth proportional to 218,605.94, 327,513.39 and 100,376.18 is: 150,382.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,605.94 : 327,513.39 = 100,376.18 : x
  2. Step 2: Convert to fraction form
    218,605.94/327,513.39 = 100,376.18/x
  3. Step 3: Cross multiply
    218,605.94x = 327,513.39 × 100,376.18
  4. Step 4: Simplify right side
    218,605.94x = 32,874,542,987.05
  5. Step 5: Solve for x
    x = 32,874,542,987.05/218,605.94
  6. Step 6: Final answer
    x = 150,382.66

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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.