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Finding the Fourth Proportional to 73,858.20, 110,711.70 and 36,360.60

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Solution

The fourth proportional to 73,858.20, 110,711.70 and 36,360.60 is: 54,503.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,858.20 : 110,711.70 = 36,360.60 : x
  2. Step 2: Convert to fraction form
    73,858.20/110,711.70 = 36,360.60/x
  3. Step 3: Cross multiply
    73,858.20x = 110,711.70 × 36,360.60
  4. Step 4: Simplify right side
    73,858.20x = 4,025,543,839.02
  5. Step 5: Solve for x
    x = 4,025,543,839.02/73,858.20
  6. Step 6: Final answer
    x = 54,503.68

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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.