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Finding the Fourth Proportional to 253,060.92, 379,591.52 and 66,072.42

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Solution

The fourth proportional to 253,060.92, 379,591.52 and 66,072.42 is: 99,108.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,060.92 : 379,591.52 = 66,072.42 : x
  2. Step 2: Convert to fraction form
    253,060.92/379,591.52 = 66,072.42/x
  3. Step 3: Cross multiply
    253,060.92x = 379,591.52 × 66,072.42
  4. Step 4: Simplify right side
    253,060.92x = 25,080,530,337.88
  5. Step 5: Solve for x
    x = 25,080,530,337.88/253,060.92
  6. Step 6: Final answer
    x = 99,108.67

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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.