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Finding the Fourth Proportional to 193,724.80, 290,673.60 and 88,489.60

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Solution

The fourth proportional to 193,724.80, 290,673.60 and 88,489.60 is: 132,773.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,724.80 : 290,673.60 = 88,489.60 : x
  2. Step 2: Convert to fraction form
    193,724.80/290,673.60 = 88,489.60/x
  3. Step 3: Cross multiply
    193,724.80x = 290,673.60 × 88,489.60
  4. Step 4: Simplify right side
    193,724.80x = 25,721,590,594.56
  5. Step 5: Solve for x
    x = 25,721,590,594.56/193,724.80
  6. Step 6: Final answer
    x = 132,773.87

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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.