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Finding the Fourth Proportional to 91,249.68, 136,918.24 and 44,477.04

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Solution

The fourth proportional to 91,249.68, 136,918.24 and 44,477.04 is: 66,736.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,249.68 : 136,918.24 = 44,477.04 : x
  2. Step 2: Convert to fraction form
    91,249.68/136,918.24 = 44,477.04/x
  3. Step 3: Cross multiply
    91,249.68x = 136,918.24 × 44,477.04
  4. Step 4: Simplify right side
    91,249.68x = 6,089,718,037.21
  5. Step 5: Solve for x
    x = 6,089,718,037.21/91,249.68
  6. Step 6: Final answer
    x = 66,736.87

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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.