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Finding the Fourth Proportional to 318,363.21, 477,380.45 and 93,694.46

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Solution

The fourth proportional to 318,363.21, 477,380.45 and 93,694.46 is: 140,493.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,363.21 : 477,380.45 = 93,694.46 : x
  2. Step 2: Convert to fraction form
    318,363.21/477,380.45 = 93,694.46/x
  3. Step 3: Cross multiply
    318,363.21x = 477,380.45 × 93,694.46
  4. Step 4: Simplify right side
    318,363.21x = 44,727,901,324.64
  5. Step 5: Solve for x
    x = 44,727,901,324.64/318,363.21
  6. Step 6: Final answer
    x = 140,493.31

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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.