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Finding the Fourth Proportional to 79,620.77, 109,873.91 and 43,807.43

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Solution

The fourth proportional to 79,620.77, 109,873.91 and 43,807.43 is: 60,452.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,620.77 : 109,873.91 = 43,807.43 : x
  2. Step 2: Convert to fraction form
    79,620.77/109,873.91 = 43,807.43/x
  3. Step 3: Cross multiply
    79,620.77x = 109,873.91 × 43,807.43
  4. Step 4: Simplify right side
    79,620.77x = 4,813,293,181.30
  5. Step 5: Solve for x
    x = 4,813,293,181.30/79,620.77
  6. Step 6: Final answer
    x = 60,452.74

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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.