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Finding the Fourth Proportional to 73,977.50, 110,994.20 and 44,415.96

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Solution

The fourth proportional to 73,977.50, 110,994.20 and 44,415.96 is: 66,640.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,977.50 : 110,994.20 = 44,415.96 : x
  2. Step 2: Convert to fraction form
    73,977.50/110,994.20 = 44,415.96/x
  3. Step 3: Cross multiply
    73,977.50x = 110,994.20 × 44,415.96
  4. Step 4: Simplify right side
    73,977.50x = 4,929,913,947.43
  5. Step 5: Solve for x
    x = 4,929,913,947.43/73,977.50
  6. Step 6: Final answer
    x = 66,640.72

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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.