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Finding the Fourth Proportional to 201,797.02, 278,481.81 and 111,153.39

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Solution

The fourth proportional to 201,797.02, 278,481.81 and 111,153.39 is: 153,392.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,797.02 : 278,481.81 = 111,153.39 : x
  2. Step 2: Convert to fraction form
    201,797.02/278,481.81 = 111,153.39/x
  3. Step 3: Cross multiply
    201,797.02x = 278,481.81 × 111,153.39
  4. Step 4: Simplify right side
    201,797.02x = 30,954,197,234.84
  5. Step 5: Solve for x
    x = 30,954,197,234.84/201,797.02
  6. Step 6: Final answer
    x = 153,392.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.