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Finding the Fourth Proportional to 73,917.20, 110,912.94 and 34,477.40

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Solution

The fourth proportional to 73,917.20, 110,912.94 and 34,477.40 is: 51,733.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,917.20 : 110,912.94 = 34,477.40 : x
  2. Step 2: Convert to fraction form
    73,917.20/110,912.94 = 34,477.40/x
  3. Step 3: Cross multiply
    73,917.20x = 110,912.94 × 34,477.40
  4. Step 4: Simplify right side
    73,917.20x = 3,823,989,797.56
  5. Step 5: Solve for x
    x = 3,823,989,797.56/73,917.20
  6. Step 6: Final answer
    x = 51,733.42

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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.