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Finding the Fourth Proportional to 150,361.72, 225,455.12 and 56,874.76

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Solution

The fourth proportional to 150,361.72, 225,455.12 and 56,874.76 is: 85,279.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,361.72 : 225,455.12 = 56,874.76 : x
  2. Step 2: Convert to fraction form
    150,361.72/225,455.12 = 56,874.76/x
  3. Step 3: Cross multiply
    150,361.72x = 225,455.12 × 56,874.76
  4. Step 4: Simplify right side
    150,361.72x = 12,822,705,840.77
  5. Step 5: Solve for x
    x = 12,822,705,840.77/150,361.72
  6. Step 6: Final answer
    x = 85,279.06

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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.