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Finding the Fourth Proportional to 79,363.19, 109,520.87 and 43,553.79

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Solution

The fourth proportional to 79,363.19, 109,520.87 and 43,553.79 is: 60,104.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,363.19 : 109,520.87 = 43,553.79 : x
  2. Step 2: Convert to fraction form
    79,363.19/109,520.87 = 43,553.79/x
  3. Step 3: Cross multiply
    79,363.19x = 109,520.87 × 43,553.79
  4. Step 4: Simplify right side
    79,363.19x = 4,770,048,972.60
  5. Step 5: Solve for x
    x = 4,770,048,972.60/79,363.19
  6. Step 6: Final answer
    x = 60,104.05

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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.