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Finding the Fourth Proportional to 114,942.70, 172,311.45 and 44,805.70

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Solution

The fourth proportional to 114,942.70, 172,311.45 and 44,805.70 is: 67,168.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,942.70 : 172,311.45 = 44,805.70 : x
  2. Step 2: Convert to fraction form
    114,942.70/172,311.45 = 44,805.70/x
  3. Step 3: Cross multiply
    114,942.70x = 172,311.45 × 44,805.70
  4. Step 4: Simplify right side
    114,942.70x = 7,720,535,135.27
  5. Step 5: Solve for x
    x = 7,720,535,135.27/114,942.70
  6. Step 6: Final answer
    x = 67,168.56

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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.