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Finding the Fourth Proportional to 264,890.39, 397,331.87 and 65,212.43

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Solution

The fourth proportional to 264,890.39, 397,331.87 and 65,212.43 is: 97,817.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,890.39 : 397,331.87 = 65,212.43 : x
  2. Step 2: Convert to fraction form
    264,890.39/397,331.87 = 65,212.43/x
  3. Step 3: Cross multiply
    264,890.39x = 397,331.87 × 65,212.43
  4. Step 4: Simplify right side
    264,890.39x = 25,910,974,446.42
  5. Step 5: Solve for x
    x = 25,910,974,446.42/264,890.39
  6. Step 6: Final answer
    x = 97,817.72

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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.