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Finding the Fourth Proportional to 76,115.79, 114,093.47 and 36,589.41

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Solution

The fourth proportional to 76,115.79, 114,093.47 and 36,589.41 is: 54,845.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,115.79 : 114,093.47 = 36,589.41 : x
  2. Step 2: Convert to fraction form
    76,115.79/114,093.47 = 36,589.41/x
  3. Step 3: Cross multiply
    76,115.79x = 114,093.47 × 36,589.41
  4. Step 4: Simplify right side
    76,115.79x = 4,174,612,843.63
  5. Step 5: Solve for x
    x = 4,174,612,843.63/76,115.79
  6. Step 6: Final answer
    x = 54,845.56

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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.