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Finding the Fourth Proportional to 79,599.60, 109,845.18 and 43,299.90

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Solution

The fourth proportional to 79,599.60, 109,845.18 and 43,299.90 is: 59,752.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,599.60 : 109,845.18 = 43,299.90 : x
  2. Step 2: Convert to fraction form
    79,599.60/109,845.18 = 43,299.90/x
  3. Step 3: Cross multiply
    79,599.60x = 109,845.18 × 43,299.90
  4. Step 4: Simplify right side
    79,599.60x = 4,756,285,309.48
  5. Step 5: Solve for x
    x = 4,756,285,309.48/79,599.60
  6. Step 6: Final answer
    x = 59,752.63

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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.