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Finding the Fourth Proportional to 193,840.80, 290,847.60 and 88,605.60

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Solution

The fourth proportional to 193,840.80, 290,847.60 and 88,605.60 is: 132,947.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,840.80 : 290,847.60 = 88,605.60 : x
  2. Step 2: Convert to fraction form
    193,840.80/290,847.60 = 88,605.60/x
  3. Step 3: Cross multiply
    193,840.80x = 290,847.60 × 88,605.60
  4. Step 4: Simplify right side
    193,840.80x = 25,770,726,106.56
  5. Step 5: Solve for x
    x = 25,770,726,106.56/193,840.80
  6. Step 6: Final answer
    x = 132,947.89

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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.