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Finding the Fourth Proportional to 318,553.92, 477,908.64 and 96,937.92

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Solution

The fourth proportional to 318,553.92, 477,908.64 and 96,937.92 is: 145,430.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,553.92 : 477,908.64 = 96,937.92 : x
  2. Step 2: Convert to fraction form
    318,553.92/477,908.64 = 96,937.92/x
  3. Step 3: Cross multiply
    318,553.92x = 477,908.64 × 96,937.92
  4. Step 4: Simplify right side
    318,553.92x = 46,327,469,511.63
  5. Step 5: Solve for x
    x = 46,327,469,511.63/318,553.92
  6. Step 6: Final answer
    x = 145,430.54

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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.