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Finding the Fourth Proportional to 74,704.93, 112,079.34 and 22,115.77

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Solution

The fourth proportional to 74,704.93, 112,079.34 and 22,115.77 is: 33,180.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,704.93 : 112,079.34 = 22,115.77 : x
  2. Step 2: Convert to fraction form
    74,704.93/112,079.34 = 22,115.77/x
  3. Step 3: Cross multiply
    74,704.93x = 112,079.34 × 22,115.77
  4. Step 4: Simplify right side
    74,704.93x = 2,478,720,624.99
  5. Step 5: Solve for x
    x = 2,478,720,624.99/74,704.93
  6. Step 6: Final answer
    x = 33,180.15

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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.