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Finding the Fourth Proportional to 193,754.40, 290,631.60 and 168,093.60

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Solution

The fourth proportional to 193,754.40, 290,631.60 and 168,093.60 is: 252,140.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,754.40 : 290,631.60 = 168,093.60 : x
  2. Step 2: Convert to fraction form
    193,754.40/290,631.60 = 168,093.60/x
  3. Step 3: Cross multiply
    193,754.40x = 290,631.60 × 168,093.60
  4. Step 4: Simplify right side
    193,754.40x = 48,853,311,917.76
  5. Step 5: Solve for x
    x = 48,853,311,917.76/193,754.40
  6. Step 6: Final answer
    x = 252,140.40

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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.