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Finding the Fourth Proportional to 194,391.39, 290,928.71 and 119,558.94

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Solution

The fourth proportional to 194,391.39, 290,928.71 and 119,558.94 is: 178,933.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,391.39 : 290,928.71 = 119,558.94 : x
  2. Step 2: Convert to fraction form
    194,391.39/290,928.71 = 119,558.94/x
  3. Step 3: Cross multiply
    194,391.39x = 290,928.71 × 119,558.94
  4. Step 4: Simplify right side
    194,391.39x = 34,783,127,391.08
  5. Step 5: Solve for x
    x = 34,783,127,391.08/194,391.39
  6. Step 6: Final answer
    x = 178,933.47

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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.