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Finding the Fourth Proportional to 73,114.96, 109,650.11 and 30,994.25

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Solution

The fourth proportional to 73,114.96, 109,650.11 and 30,994.25 is: 46,481.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,114.96 : 109,650.11 = 30,994.25 : x
  2. Step 2: Convert to fraction form
    73,114.96/109,650.11 = 30,994.25/x
  3. Step 3: Cross multiply
    73,114.96x = 109,650.11 × 30,994.25
  4. Step 4: Simplify right side
    73,114.96x = 3,398,522,921.87
  5. Step 5: Solve for x
    x = 3,398,522,921.87/73,114.96
  6. Step 6: Final answer
    x = 46,481.91

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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.