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Finding the Fourth Proportional to 159,227.87, 219,729.93 and 87,607.94

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Solution

The fourth proportional to 159,227.87, 219,729.93 and 87,607.94 is: 120,896.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,227.87 : 219,729.93 = 87,607.94 : x
  2. Step 2: Convert to fraction form
    159,227.87/219,729.93 = 87,607.94/x
  3. Step 3: Cross multiply
    159,227.87x = 219,729.93 × 87,607.94
  4. Step 4: Simplify right side
    159,227.87x = 19,250,086,523.64
  5. Step 5: Solve for x
    x = 19,250,086,523.64/159,227.87
  6. Step 6: Final answer
    x = 120,896.46

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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.