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Finding the Fourth Proportional to 323,367.21, 484,751.52 and 165,247.11

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Solution

The fourth proportional to 323,367.21, 484,751.52 and 165,247.11 is: 247,717.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,367.21 : 484,751.52 = 165,247.11 : x
  2. Step 2: Convert to fraction form
    323,367.21/484,751.52 = 165,247.11/x
  3. Step 3: Cross multiply
    323,367.21x = 484,751.52 × 165,247.11
  4. Step 4: Simplify right side
    323,367.21x = 80,103,787,748.11
  5. Step 5: Solve for x
    x = 80,103,787,748.11/323,367.21
  6. Step 6: Final answer
    x = 247,717.72

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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.