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Finding the Fourth Proportional to 156,234.55, 234,343.99 and 55,037.62

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Solution

The fourth proportional to 156,234.55, 234,343.99 and 55,037.62 is: 82,553.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,234.55 : 234,343.99 = 55,037.62 : x
  2. Step 2: Convert to fraction form
    156,234.55/234,343.99 = 55,037.62/x
  3. Step 3: Cross multiply
    156,234.55x = 234,343.99 × 55,037.62
  4. Step 4: Simplify right side
    156,234.55x = 12,897,734,747.45
  5. Step 5: Solve for x
    x = 12,897,734,747.45/156,234.55
  6. Step 6: Final answer
    x = 82,553.67

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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.