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Finding the Fourth Proportional to 218,440.42, 327,788.02 and 92,072.94

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Solution

The fourth proportional to 218,440.42, 327,788.02 and 92,072.94 is: 138,163.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,440.42 : 327,788.02 = 92,072.94 : x
  2. Step 2: Convert to fraction form
    218,440.42/327,788.02 = 92,072.94/x
  3. Step 3: Cross multiply
    218,440.42x = 327,788.02 × 92,072.94
  4. Step 4: Simplify right side
    218,440.42x = 30,180,406,698.18
  5. Step 5: Solve for x
    x = 30,180,406,698.18/218,440.42
  6. Step 6: Final answer
    x = 138,163.11

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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.