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Finding the Fourth Proportional to 541,385.67, 812,122.20 and 167,408.67

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Solution

The fourth proportional to 541,385.67, 812,122.20 and 167,408.67 is: 251,126.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    541,385.67 : 812,122.20 = 167,408.67 : x
  2. Step 2: Convert to fraction form
    541,385.67/812,122.20 = 167,408.67/x
  3. Step 3: Cross multiply
    541,385.67x = 812,122.20 × 167,408.67
  4. Step 4: Simplify right side
    541,385.67x = 135,956,297,379.47
  5. Step 5: Solve for x
    x = 135,956,297,379.47/541,385.67
  6. Step 6: Final answer
    x = 251,126.52

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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.