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Finding the Fourth Proportional to 197,928, 273,140.64 and 108,504

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Solution

The fourth proportional to 197,928, 273,140.64 and 108,504 is: 149,735.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,928 : 273,140.64 = 108,504 : x
  2. Step 2: Convert to fraction form
    197,928/273,140.64 = 108,504/x
  3. Step 3: Cross multiply
    197,928x = 273,140.64 × 108,504
  4. Step 4: Simplify right side
    197,928x = 29,636,852,002.56
  5. Step 5: Solve for x
    x = 29,636,852,002.56/197,928
  6. Step 6: Final answer
    x = 149,735.52

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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.