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Finding the Fourth Proportional to 218,124.88, 327,187.41 and 68,376.94

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Solution

The fourth proportional to 218,124.88, 327,187.41 and 68,376.94 is: 102,565.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,124.88 : 327,187.41 = 68,376.94 : x
  2. Step 2: Convert to fraction form
    218,124.88/327,187.41 = 68,376.94/x
  3. Step 3: Cross multiply
    218,124.88x = 327,187.41 × 68,376.94
  4. Step 4: Simplify right side
    218,124.88x = 22,372,073,902.33
  5. Step 5: Solve for x
    x = 22,372,073,902.33/218,124.88
  6. Step 6: Final answer
    x = 102,565.44

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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.