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Finding the Fourth Proportional to 212,169.31, 318,244.37 and 62,414.48

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Solution

The fourth proportional to 212,169.31, 318,244.37 and 62,414.48 is: 93,618.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,169.31 : 318,244.37 = 62,414.48 : x
  2. Step 2: Convert to fraction form
    212,169.31/318,244.37 = 62,414.48/x
  3. Step 3: Cross multiply
    212,169.31x = 318,244.37 × 62,414.48
  4. Step 4: Simplify right side
    212,169.31x = 19,863,057,350.02
  5. Step 5: Solve for x
    x = 19,863,057,350.02/212,169.31
  6. Step 6: Final answer
    x = 93,618.90

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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.