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Finding the Fourth Proportional to 318,366.21, 477,384.96 and 93,697.47

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Solution

The fourth proportional to 318,366.21, 477,384.96 and 93,697.47 is: 140,497.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,366.21 : 477,384.96 = 93,697.47 : x
  2. Step 2: Convert to fraction form
    318,366.21/477,384.96 = 93,697.47/x
  3. Step 3: Cross multiply
    318,366.21x = 477,384.96 × 93,697.47
  4. Step 4: Simplify right side
    318,366.21x = 44,729,762,968.05
  5. Step 5: Solve for x
    x = 44,729,762,968.05/318,366.21
  6. Step 6: Final answer
    x = 140,497.83

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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.