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Finding the Fourth Proportional to 104,196.41, 143,738.20 and 65,891.41

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Solution

The fourth proportional to 104,196.41, 143,738.20 and 65,891.41 is: 90,896.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,196.41 : 143,738.20 = 65,891.41 : x
  2. Step 2: Convert to fraction form
    104,196.41/143,738.20 = 65,891.41/x
  3. Step 3: Cross multiply
    104,196.41x = 143,738.20 × 65,891.41
  4. Step 4: Simplify right side
    104,196.41x = 9,471,112,021.24
  5. Step 5: Solve for x
    x = 9,471,112,021.24/104,196.41
  6. Step 6: Final answer
    x = 90,896.72

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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.