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Finding the Fourth Proportional to 318,105.12, 477,159.72 and 93,464.64

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Solution

The fourth proportional to 318,105.12, 477,159.72 and 93,464.64 is: 140,197.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,105.12 : 477,159.72 = 93,464.64 : x
  2. Step 2: Convert to fraction form
    318,105.12/477,159.72 = 93,464.64/x
  3. Step 3: Cross multiply
    318,105.12x = 477,159.72 × 93,464.64
  4. Step 4: Simplify right side
    318,105.12x = 44,597,561,452.30
  5. Step 5: Solve for x
    x = 44,597,561,452.30/318,105.12
  6. Step 6: Final answer
    x = 140,197.56

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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.