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Finding the Fourth Proportional to 74,164.20, 111,224.70 and 26,773.80

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Solution

The fourth proportional to 74,164.20, 111,224.70 and 26,773.80 is: 40,152.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,164.20 : 111,224.70 = 26,773.80 : x
  2. Step 2: Convert to fraction form
    74,164.20/111,224.70 = 26,773.80/x
  3. Step 3: Cross multiply
    74,164.20x = 111,224.70 × 26,773.80
  4. Step 4: Simplify right side
    74,164.20x = 2,977,907,872.86
  5. Step 5: Solve for x
    x = 2,977,907,872.86/74,164.20
  6. Step 6: Final answer
    x = 40,152.90

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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.