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Finding the Fourth Proportional to 79,441.59, 109,629.45 and 43,633.38

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Solution

The fourth proportional to 79,441.59, 109,629.45 and 43,633.38 is: 60,214.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,441.59 : 109,629.45 = 43,633.38 : x
  2. Step 2: Convert to fraction form
    79,441.59/109,629.45 = 43,633.38/x
  3. Step 3: Cross multiply
    79,441.59x = 109,629.45 × 43,633.38
  4. Step 4: Simplify right side
    79,441.59x = 4,783,503,451.04
  5. Step 5: Solve for x
    x = 4,783,503,451.04/79,441.59
  6. Step 6: Final answer
    x = 60,214.10

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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.