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Finding the Fourth Proportional to 99,759.49, 149,640.55 and 33,199.63

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Solution

The fourth proportional to 99,759.49, 149,640.55 and 33,199.63 is: 49,799.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,759.49 : 149,640.55 = 33,199.63 : x
  2. Step 2: Convert to fraction form
    99,759.49/149,640.55 = 33,199.63/x
  3. Step 3: Cross multiply
    99,759.49x = 149,640.55 × 33,199.63
  4. Step 4: Simplify right side
    99,759.49x = 4,968,010,893.00
  5. Step 5: Solve for x
    x = 4,968,010,893.00/99,759.49
  6. Step 6: Final answer
    x = 49,799.88

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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.