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Finding the Fourth Proportional to 168,745.70, 253,122.60 and 50,420.90

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Solution

The fourth proportional to 168,745.70, 253,122.60 and 50,420.90 is: 75,632.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,745.70 : 253,122.60 = 50,420.90 : x
  2. Step 2: Convert to fraction form
    168,745.70/253,122.60 = 50,420.90/x
  3. Step 3: Cross multiply
    168,745.70x = 253,122.60 × 50,420.90
  4. Step 4: Simplify right side
    168,745.70x = 12,762,669,302.34
  5. Step 5: Solve for x
    x = 12,762,669,302.34/168,745.70
  6. Step 6: Final answer
    x = 75,632.56

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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.