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Finding the Fourth Proportional to 75,379.96, 113,072.34 and 37,919.56

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Solution

The fourth proportional to 75,379.96, 113,072.34 and 37,919.56 is: 56,880.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,379.96 : 113,072.34 = 37,919.56 : x
  2. Step 2: Convert to fraction form
    75,379.96/113,072.34 = 37,919.56/x
  3. Step 3: Cross multiply
    75,379.96x = 113,072.34 × 37,919.56
  4. Step 4: Simplify right side
    75,379.96x = 4,287,653,380.97
  5. Step 5: Solve for x
    x = 4,287,653,380.97/75,379.96
  6. Step 6: Final answer
    x = 56,880.55

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1.5x scale

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.