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Finding the Fourth Proportional to 73,311.21, 109,912.95 and 23,362.43

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Solution

The fourth proportional to 73,311.21, 109,912.95 and 23,362.43 is: 35,026.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,311.21 : 109,912.95 = 23,362.43 : x
  2. Step 2: Convert to fraction form
    73,311.21/109,912.95 = 23,362.43/x
  3. Step 3: Cross multiply
    73,311.21x = 109,912.95 × 23,362.43
  4. Step 4: Simplify right side
    73,311.21x = 2,567,833,050.90
  5. Step 5: Solve for x
    x = 2,567,833,050.90/73,311.21
  6. Step 6: Final answer
    x = 35,026.47

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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.