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Finding the Fourth Proportional to 444,640.73, 666,891.72 and 145,054.89

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Solution

The fourth proportional to 444,640.73, 666,891.72 and 145,054.89 is: 217,559.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,640.73 : 666,891.72 = 145,054.89 : x
  2. Step 2: Convert to fraction form
    444,640.73/666,891.72 = 145,054.89/x
  3. Step 3: Cross multiply
    444,640.73x = 666,891.72 × 145,054.89
  4. Step 4: Simplify right side
    444,640.73x = 96,735,905,086.51
  5. Step 5: Solve for x
    x = 96,735,905,086.51/444,640.73
  6. Step 6: Final answer
    x = 217,559.71

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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.