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Finding the Fourth Proportional to 100,794.44, 139,091.15 and 55,476.73

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Solution

The fourth proportional to 100,794.44, 139,091.15 and 55,476.73 is: 76,555.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,794.44 : 139,091.15 = 55,476.73 : x
  2. Step 2: Convert to fraction form
    100,794.44/139,091.15 = 55,476.73/x
  3. Step 3: Cross multiply
    100,794.44x = 139,091.15 × 55,476.73
  4. Step 4: Simplify right side
    100,794.44x = 7,716,322,037.07
  5. Step 5: Solve for x
    x = 7,716,322,037.07/100,794.44
  6. Step 6: Final answer
    x = 76,555.03

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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.