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Finding the Fourth Proportional to 49,105.80, 73,658.70 and 43,662.60

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Solution

The fourth proportional to 49,105.80, 73,658.70 and 43,662.60 is: 65,493.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,105.80 : 73,658.70 = 43,662.60 : x
  2. Step 2: Convert to fraction form
    49,105.80/73,658.70 = 43,662.60/x
  3. Step 3: Cross multiply
    49,105.80x = 73,658.70 × 43,662.60
  4. Step 4: Simplify right side
    49,105.80x = 3,216,130,354.62
  5. Step 5: Solve for x
    x = 3,216,130,354.62/49,105.80
  6. Step 6: Final answer
    x = 65,493.90

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.