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Finding the Fourth Proportional to 171,093.67, 256,684.26 and 71,220.67

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Solution

The fourth proportional to 171,093.67, 256,684.26 and 71,220.67 is: 106,849.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,093.67 : 256,684.26 = 71,220.67 : x
  2. Step 2: Convert to fraction form
    171,093.67/256,684.26 = 71,220.67/x
  3. Step 3: Cross multiply
    171,093.67x = 256,684.26 × 71,220.67
  4. Step 4: Simplify right side
    171,093.67x = 18,281,224,975.65
  5. Step 5: Solve for x
    x = 18,281,224,975.65/171,093.67
  6. Step 6: Final answer
    x = 106,849.22

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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.