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Finding the Fourth Proportional to 264,819.75, 397,408.23 and 98,607.75

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Solution

The fourth proportional to 264,819.75, 397,408.23 and 98,607.75 is: 147,978.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,819.75 : 397,408.23 = 98,607.75 : x
  2. Step 2: Convert to fraction form
    264,819.75/397,408.23 = 98,607.75/x
  3. Step 3: Cross multiply
    264,819.75x = 397,408.23 × 98,607.75
  4. Step 4: Simplify right side
    264,819.75x = 39,187,531,391.78
  5. Step 5: Solve for x
    x = 39,187,531,391.78/264,819.75
  6. Step 6: Final answer
    x = 147,978.13

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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.