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Finding the Fourth Proportional to 250,546.98, 345,768.98 and 148,632.78

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Solution

The fourth proportional to 250,546.98, 345,768.98 and 148,632.78 is: 205,121.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,546.98 : 345,768.98 = 148,632.78 : x
  2. Step 2: Convert to fraction form
    250,546.98/345,768.98 = 148,632.78/x
  3. Step 3: Cross multiply
    250,546.98x = 345,768.98 × 148,632.78
  4. Step 4: Simplify right side
    250,546.98x = 51,392,603,992.00
  5. Step 5: Solve for x
    x = 51,392,603,992.00/250,546.98
  6. Step 6: Final answer
    x = 205,121.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.