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Finding the Fourth Proportional to 193,606.85, 290,366.45 and 73,620.89

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Solution

The fourth proportional to 193,606.85, 290,366.45 and 73,620.89 is: 110,414.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,606.85 : 290,366.45 = 73,620.89 : x
  2. Step 2: Convert to fraction form
    193,606.85/290,366.45 = 73,620.89/x
  3. Step 3: Cross multiply
    193,606.85x = 290,366.45 × 73,620.89
  4. Step 4: Simplify right side
    193,606.85x = 21,377,036,475.14
  5. Step 5: Solve for x
    x = 21,377,036,475.14/193,606.85
  6. Step 6: Final answer
    x = 110,414.67

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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.