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Finding the Fourth Proportional to 193,153.65, 289,813.73 and 104,469.59

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Solution

The fourth proportional to 193,153.65, 289,813.73 and 104,469.59 is: 156,749.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,153.65 : 289,813.73 = 104,469.59 : x
  2. Step 2: Convert to fraction form
    193,153.65/289,813.73 = 104,469.59/x
  3. Step 3: Cross multiply
    193,153.65x = 289,813.73 × 104,469.59
  4. Step 4: Simplify right side
    193,153.65x = 30,276,719,578.05
  5. Step 5: Solve for x
    x = 30,276,719,578.05/193,153.65
  6. Step 6: Final answer
    x = 156,749.40

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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.