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Finding the Fourth Proportional to 168,915.22, 253,412.24 and 48,974.67

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Solution

The fourth proportional to 168,915.22, 253,412.24 and 48,974.67 is: 73,473.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,915.22 : 253,412.24 = 48,974.67 : x
  2. Step 2: Convert to fraction form
    168,915.22/253,412.24 = 48,974.67/x
  3. Step 3: Cross multiply
    168,915.22x = 253,412.24 × 48,974.67
  4. Step 4: Simplify right side
    168,915.22x = 12,410,780,583.09
  5. Step 5: Solve for x
    x = 12,410,780,583.09/168,915.22
  6. Step 6: Final answer
    x = 73,473.43

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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.