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Finding the Fourth Proportional to 159,600.75, 239,436.11 and 47,289.79

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Solution

The fourth proportional to 159,600.75, 239,436.11 and 47,289.79 is: 70,945.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,600.75 : 239,436.11 = 47,289.79 : x
  2. Step 2: Convert to fraction form
    159,600.75/239,436.11 = 47,289.79/x
  3. Step 3: Cross multiply
    159,600.75x = 239,436.11 × 47,289.79
  4. Step 4: Simplify right side
    159,600.75x = 11,322,883,360.32
  5. Step 5: Solve for x
    x = 11,322,883,360.32/159,600.75
  6. Step 6: Final answer
    x = 70,945.05

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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.