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Finding the Fourth Proportional to 193,441.80, 290,162.70 and 127,086.60

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Solution

The fourth proportional to 193,441.80, 290,162.70 and 127,086.60 is: 190,629.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,441.80 : 290,162.70 = 127,086.60 : x
  2. Step 2: Convert to fraction form
    193,441.80/290,162.70 = 127,086.60/x
  3. Step 3: Cross multiply
    193,441.80x = 290,162.70 × 127,086.60
  4. Step 4: Simplify right side
    193,441.80x = 36,875,790,989.82
  5. Step 5: Solve for x
    x = 36,875,790,989.82/193,441.80
  6. Step 6: Final answer
    x = 190,629.90

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.