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Finding the Fourth Proportional to 194,059.89, 290,991.39 and 88,788.65

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Solution

The fourth proportional to 194,059.89, 290,991.39 and 88,788.65 is: 133,137.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,059.89 : 290,991.39 = 88,788.65 : x
  2. Step 2: Convert to fraction form
    194,059.89/290,991.39 = 88,788.65/x
  3. Step 3: Cross multiply
    194,059.89x = 290,991.39 × 88,788.65
  4. Step 4: Simplify right side
    194,059.89x = 25,836,731,224.77
  5. Step 5: Solve for x
    x = 25,836,731,224.77/194,059.89
  6. Step 6: Final answer
    x = 133,137.93

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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.