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Finding the Fourth Proportional to 218,251.77, 327,381.90 and 68,496.94

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Solution

The fourth proportional to 218,251.77, 327,381.90 and 68,496.94 is: 102,746.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,251.77 : 327,381.90 = 68,496.94 : x
  2. Step 2: Convert to fraction form
    218,251.77/327,381.90 = 68,496.94/x
  3. Step 3: Cross multiply
    218,251.77x = 327,381.90 × 68,496.94
  4. Step 4: Simplify right side
    218,251.77x = 22,424,658,361.39
  5. Step 5: Solve for x
    x = 22,424,658,361.39/218,251.77
  6. Step 6: Final answer
    x = 102,746.74

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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.