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Finding the Fourth Proportional to 80,764.90, 111,454.74 and 44,465.20

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Solution

The fourth proportional to 80,764.90, 111,454.74 and 44,465.20 is: 61,361.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,764.90 : 111,454.74 = 44,465.20 : x
  2. Step 2: Convert to fraction form
    80,764.90/111,454.74 = 44,465.20/x
  3. Step 3: Cross multiply
    80,764.90x = 111,454.74 × 44,465.20
  4. Step 4: Simplify right side
    80,764.90x = 4,955,857,305.05
  5. Step 5: Solve for x
    x = 4,955,857,305.05/80,764.90
  6. Step 6: Final answer
    x = 61,361.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.