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Finding the Fourth Proportional to 197,888.68, 273,072.88 and 126,260.78

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Solution

The fourth proportional to 197,888.68, 273,072.88 and 126,260.78 is: 174,231.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,888.68 : 273,072.88 = 126,260.78 : x
  2. Step 2: Convert to fraction form
    197,888.68/273,072.88 = 126,260.78/x
  3. Step 3: Cross multiply
    197,888.68x = 273,072.88 × 126,260.78
  4. Step 4: Simplify right side
    197,888.68x = 34,478,394,825.65
  5. Step 5: Solve for x
    x = 34,478,394,825.65/197,888.68
  6. Step 6: Final answer
    x = 174,231.26

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1.5x scale

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.