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Finding the Fourth Proportional to 186,158.44, 279,354.30 and 75,350.44

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Solution

The fourth proportional to 186,158.44, 279,354.30 and 75,350.44 is: 113,072.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,158.44 : 279,354.30 = 75,350.44 : x
  2. Step 2: Convert to fraction form
    186,158.44/279,354.30 = 75,350.44/x
  3. Step 3: Cross multiply
    186,158.44x = 279,354.30 × 75,350.44
  4. Step 4: Simplify right side
    186,158.44x = 21,049,469,420.89
  5. Step 5: Solve for x
    x = 21,049,469,420.89/186,158.44
  6. Step 6: Final answer
    x = 113,072.87

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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.