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Finding the Fourth Proportional to 149,896.53, 206,832.66 and 88,634.21

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Solution

The fourth proportional to 149,896.53, 206,832.66 and 88,634.21 is: 122,300.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,896.53 : 206,832.66 = 88,634.21 : x
  2. Step 2: Convert to fraction form
    149,896.53/206,832.66 = 88,634.21/x
  3. Step 3: Cross multiply
    149,896.53x = 206,832.66 × 88,634.21
  4. Step 4: Simplify right side
    149,896.53x = 18,332,448,054.76
  5. Step 5: Solve for x
    x = 18,332,448,054.76/149,896.53
  6. Step 6: Final answer
    x = 122,300.68

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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.