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Finding the Fourth Proportional to 45,912.70, 68,739.45 and 44,616.70

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Solution

The fourth proportional to 45,912.70, 68,739.45 and 44,616.70 is: 66,799.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,912.70 : 68,739.45 = 44,616.70 : x
  2. Step 2: Convert to fraction form
    45,912.70/68,739.45 = 44,616.70/x
  3. Step 3: Cross multiply
    45,912.70x = 68,739.45 × 44,616.70
  4. Step 4: Simplify right side
    45,912.70x = 3,066,927,418.82
  5. Step 5: Solve for x
    x = 3,066,927,418.82/45,912.70
  6. Step 6: Final answer
    x = 66,799.11

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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.