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Finding the Fourth Proportional to 79,245.56, 109,361.56 and 43,435.58

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Solution

The fourth proportional to 79,245.56, 109,361.56 and 43,435.58 is: 59,942.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,245.56 : 109,361.56 = 43,435.58 : x
  2. Step 2: Convert to fraction form
    79,245.56/109,361.56 = 43,435.58/x
  3. Step 3: Cross multiply
    79,245.56x = 109,361.56 × 43,435.58
  4. Step 4: Simplify right side
    79,245.56x = 4,750,182,788.30
  5. Step 5: Solve for x
    x = 4,750,182,788.30/79,245.56
  6. Step 6: Final answer
    x = 59,942.57

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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.