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Finding the Fourth Proportional to 318,367.71, 477,387.20 and 93,698.96

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Solution

The fourth proportional to 318,367.71, 477,387.20 and 93,698.96 is: 140,500.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,367.71 : 477,387.20 = 93,698.96 : x
  2. Step 2: Convert to fraction form
    318,367.71/477,387.20 = 93,698.96/x
  3. Step 3: Cross multiply
    318,367.71x = 477,387.20 × 93,698.96
  4. Step 4: Simplify right side
    318,367.71x = 44,730,682,004.62
  5. Step 5: Solve for x
    x = 44,730,682,004.62/318,367.71
  6. Step 6: Final answer
    x = 140,500.06

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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.