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Finding the Fourth Proportional to 159,479.66, 239,241.36 and 47,168.71

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Solution

The fourth proportional to 159,479.66, 239,241.36 and 47,168.71 is: 70,759.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,479.66 : 239,241.36 = 47,168.71 : x
  2. Step 2: Convert to fraction form
    159,479.66/239,241.36 = 47,168.71/x
  3. Step 3: Cross multiply
    159,479.66x = 239,241.36 × 47,168.71
  4. Step 4: Simplify right side
    159,479.66x = 11,284,706,329.85
  5. Step 5: Solve for x
    x = 11,284,706,329.85/159,479.66
  6. Step 6: Final answer
    x = 70,759.53

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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.