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Finding the Fourth Proportional to 318,199.66, 477,299.30 and 93,561.95

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Solution

The fourth proportional to 318,199.66, 477,299.30 and 93,561.95 is: 140,342.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,199.66 : 477,299.30 = 93,561.95 : x
  2. Step 2: Convert to fraction form
    318,199.66/477,299.30 = 93,561.95/x
  3. Step 3: Cross multiply
    318,199.66x = 477,299.30 × 93,561.95
  4. Step 4: Simplify right side
    318,199.66x = 44,657,053,241.64
  5. Step 5: Solve for x
    x = 44,657,053,241.64/318,199.66
  6. Step 6: Final answer
    x = 140,342.87

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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.