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Finding the Fourth Proportional to 79,453.96, 109,647.23 and 43,643.97

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Solution

The fourth proportional to 79,453.96, 109,647.23 and 43,643.97 is: 60,229.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,453.96 : 109,647.23 = 43,643.97 : x
  2. Step 2: Convert to fraction form
    79,453.96/109,647.23 = 43,643.97/x
  3. Step 3: Cross multiply
    79,453.96x = 109,647.23 × 43,643.97
  4. Step 4: Simplify right side
    79,453.96x = 4,785,440,416.70
  5. Step 5: Solve for x
    x = 4,785,440,416.70/79,453.96
  6. Step 6: Final answer
    x = 60,229.10

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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.