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Finding the Fourth Proportional to 111,628.44, 154,055.82 and 63,896.76

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Solution

The fourth proportional to 111,628.44, 154,055.82 and 63,896.76 is: 88,182.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,628.44 : 154,055.82 = 63,896.76 : x
  2. Step 2: Convert to fraction form
    111,628.44/154,055.82 = 63,896.76/x
  3. Step 3: Cross multiply
    111,628.44x = 154,055.82 × 63,896.76
  4. Step 4: Simplify right side
    111,628.44x = 9,843,667,757.14
  5. Step 5: Solve for x
    x = 9,843,667,757.14/111,628.44
  6. Step 6: Final answer
    x = 88,182.44

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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.