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Finding the Fourth Proportional to 159,560.31, 239,362.34 and 70,811.85

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Solution

The fourth proportional to 159,560.31, 239,362.34 and 70,811.85 is: 106,227.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,560.31 : 239,362.34 = 70,811.85 : x
  2. Step 2: Convert to fraction form
    159,560.31/239,362.34 = 70,811.85/x
  3. Step 3: Cross multiply
    159,560.31x = 239,362.34 × 70,811.85
  4. Step 4: Simplify right side
    159,560.31x = 16,949,689,761.67
  5. Step 5: Solve for x
    x = 16,949,689,761.67/159,560.31
  6. Step 6: Final answer
    x = 106,227.48

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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.