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Finding the Fourth Proportional to 266,852.54, 400,268.69 and 67,170.33

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Solution

The fourth proportional to 266,852.54, 400,268.69 and 67,170.33 is: 100,752.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    266,852.54 : 400,268.69 = 67,170.33 : x
  2. Step 2: Convert to fraction form
    266,852.54/400,268.69 = 67,170.33/x
  3. Step 3: Cross multiply
    266,852.54x = 400,268.69 × 67,170.33
  4. Step 4: Simplify right side
    266,852.54x = 26,886,179,912.00
  5. Step 5: Solve for x
    x = 26,886,179,912.00/266,852.54
  6. Step 6: Final answer
    x = 100,752.95

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1.5x scale

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.