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Finding the Fourth Proportional to 79,361.56, 109,520.28 and 43,554.90

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Solution

The fourth proportional to 79,361.56, 109,520.28 and 43,554.90 is: 60,106.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,361.56 : 109,520.28 = 43,554.90 : x
  2. Step 2: Convert to fraction form
    79,361.56/109,520.28 = 43,554.90/x
  3. Step 3: Cross multiply
    79,361.56x = 109,520.28 × 43,554.90
  4. Step 4: Simplify right side
    79,361.56x = 4,770,144,843.37
  5. Step 5: Solve for x
    x = 4,770,144,843.37/79,361.56
  6. Step 6: Final answer
    x = 60,106.49

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1.5x scale

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.