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Finding the Fourth Proportional to 167,469.53, 250,911.78 and 139,568.87

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Solution

The fourth proportional to 167,469.53, 250,911.78 and 139,568.87 is: 209,109.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,469.53 : 250,911.78 = 139,568.87 : x
  2. Step 2: Convert to fraction form
    167,469.53/250,911.78 = 139,568.87/x
  3. Step 3: Cross multiply
    167,469.53x = 250,911.78 × 139,568.87
  4. Step 4: Simplify right side
    167,469.53x = 35,019,474,440.34
  5. Step 5: Solve for x
    x = 35,019,474,440.34/167,469.53
  6. Step 6: Final answer
    x = 209,109.53

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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.