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Finding the Fourth Proportional to 79,785.53, 110,103.48 and 43,975.56

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Solution

The fourth proportional to 79,785.53, 110,103.48 and 43,975.56 is: 60,685.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,785.53 : 110,103.48 = 43,975.56 : x
  2. Step 2: Convert to fraction form
    79,785.53/110,103.48 = 43,975.56/x
  3. Step 3: Cross multiply
    79,785.53x = 110,103.48 × 43,975.56
  4. Step 4: Simplify right side
    79,785.53x = 4,841,862,190.95
  5. Step 5: Solve for x
    x = 4,841,862,190.95/79,785.53
  6. Step 6: Final answer
    x = 60,685.97

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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.