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Finding the Fourth Proportional to 272,199.54, 408,392.86 and 122,544.74

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Solution

The fourth proportional to 272,199.54, 408,392.86 and 122,544.74 is: 183,859.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,199.54 : 408,392.86 = 122,544.74 : x
  2. Step 2: Convert to fraction form
    272,199.54/408,392.86 = 122,544.74/x
  3. Step 3: Cross multiply
    272,199.54x = 408,392.86 × 122,544.74
  4. Step 4: Simplify right side
    272,199.54x = 50,046,396,846.56
  5. Step 5: Solve for x
    x = 50,046,396,846.56/272,199.54
  6. Step 6: Final answer
    x = 183,859.23

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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.