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Finding the Fourth Proportional to 49,166.70, 73,640.70 and 40,418.70

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Solution

The fourth proportional to 49,166.70, 73,640.70 and 40,418.70 is: 60,538.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,166.70 : 73,640.70 = 40,418.70 : x
  2. Step 2: Convert to fraction form
    49,166.70/73,640.70 = 40,418.70/x
  3. Step 3: Cross multiply
    49,166.70x = 73,640.70 × 40,418.70
  4. Step 4: Simplify right side
    49,166.70x = 2,976,461,361.09
  5. Step 5: Solve for x
    x = 2,976,461,361.09/49,166.70
  6. Step 6: Final answer
    x = 60,538.16

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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.