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Finding the Fourth Proportional to 186,072.88, 279,183.84 and 67,752.40

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Solution

The fourth proportional to 186,072.88, 279,183.84 and 67,752.40 is: 101,655.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,072.88 : 279,183.84 = 67,752.40 : x
  2. Step 2: Convert to fraction form
    186,072.88/279,183.84 = 67,752.40/x
  3. Step 3: Cross multiply
    186,072.88x = 279,183.84 × 67,752.40
  4. Step 4: Simplify right side
    186,072.88x = 18,915,375,201.22
  5. Step 5: Solve for x
    x = 18,915,375,201.22/186,072.88
  6. Step 6: Final answer
    x = 101,655.73

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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.