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Finding the Fourth Proportional to 159,578.44, 239,206.19 and 103,454.21

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Solution

The fourth proportional to 159,578.44, 239,206.19 and 103,454.21 is: 155,076.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    159,578.44 : 239,206.19 = 103,454.21 : x
  2. Step 2: Convert to fraction form
    159,578.44/239,206.19 = 103,454.21/x
  3. Step 3: Cross multiply
    159,578.44x = 239,206.19 × 103,454.21
  4. Step 4: Simplify right side
    159,578.44x = 24,746,886,730.70
  5. Step 5: Solve for x
    x = 24,746,886,730.70/159,578.44
  6. Step 6: Final answer
    x = 155,076.63

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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.