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Finding the Fourth Proportional to 71,899.37, 99,216.99 and 41,265.98

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Solution

The fourth proportional to 71,899.37, 99,216.99 and 41,265.98 is: 56,944.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,899.37 : 99,216.99 = 41,265.98 : x
  2. Step 2: Convert to fraction form
    71,899.37/99,216.99 = 41,265.98/x
  3. Step 3: Cross multiply
    71,899.37x = 99,216.99 × 41,265.98
  4. Step 4: Simplify right side
    71,899.37x = 4,094,285,828.92
  5. Step 5: Solve for x
    x = 4,094,285,828.92/71,899.37
  6. Step 6: Final answer
    x = 56,944.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.