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Finding the Fourth Proportional to 79,545.80, 109,771.68 and 43,735.46

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Solution

The fourth proportional to 79,545.80, 109,771.68 and 43,735.46 is: 60,354.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,545.80 : 109,771.68 = 43,735.46 : x
  2. Step 2: Convert to fraction form
    79,545.80/109,771.68 = 43,735.46/x
  3. Step 3: Cross multiply
    79,545.80x = 109,771.68 × 43,735.46
  4. Step 4: Simplify right side
    79,545.80x = 4,800,914,919.77
  5. Step 5: Solve for x
    x = 4,800,914,919.77/79,545.80
  6. Step 6: Final answer
    x = 60,354.10

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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.