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Finding the Fourth Proportional to 99,791.36, 149,693.52 and 33,228.80

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Solution

The fourth proportional to 99,791.36, 149,693.52 and 33,228.80 is: 49,845.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,791.36 : 149,693.52 = 33,228.80 : x
  2. Step 2: Convert to fraction form
    99,791.36/149,693.52 = 33,228.80/x
  3. Step 3: Cross multiply
    99,791.36x = 149,693.52 × 33,228.80
  4. Step 4: Simplify right side
    99,791.36x = 4,974,136,037.38
  5. Step 5: Solve for x
    x = 4,974,136,037.38/99,791.36
  6. Step 6: Final answer
    x = 49,845.36

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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.