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Finding the Fourth Proportional to 76,662.67, 114,919.27 and 36,671.19

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Solution

The fourth proportional to 76,662.67, 114,919.27 and 36,671.19 is: 54,971.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,662.67 : 114,919.27 = 36,671.19 : x
  2. Step 2: Convert to fraction form
    76,662.67/114,919.27 = 36,671.19/x
  3. Step 3: Cross multiply
    76,662.67x = 114,919.27 × 36,671.19
  4. Step 4: Simplify right side
    76,662.67x = 4,214,226,293.15
  5. Step 5: Solve for x
    x = 4,214,226,293.15/76,662.67
  6. Step 6: Final answer
    x = 54,971.04

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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.