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Finding the Fourth Proportional to 308,779, 426,115.04 and 167,467

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Solution

The fourth proportional to 308,779, 426,115.04 and 167,467 is: 231,104.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,779 : 426,115.04 = 167,467 : x
  2. Step 2: Convert to fraction form
    308,779/426,115.04 = 167,467/x
  3. Step 3: Cross multiply
    308,779x = 426,115.04 × 167,467
  4. Step 4: Simplify right side
    308,779x = 71,360,207,403.68
  5. Step 5: Solve for x
    x = 71,360,207,403.68/308,779
  6. Step 6: Final answer
    x = 231,104.47

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.