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Finding the Fourth Proportional to 318,363.48, 477,380.88 and 93,694.77

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Solution

The fourth proportional to 318,363.48, 477,380.88 and 93,694.77 is: 140,493.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,363.48 : 477,380.88 = 93,694.77 : x
  2. Step 2: Convert to fraction form
    318,363.48/477,380.88 = 93,694.77/x
  3. Step 3: Cross multiply
    318,363.48x = 477,380.88 × 93,694.77
  4. Step 4: Simplify right side
    318,363.48x = 44,728,091,754.00
  5. Step 5: Solve for x
    x = 44,728,091,754.00/318,363.48
  6. Step 6: Final answer
    x = 140,493.79

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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.