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Finding the Fourth Proportional to 299,696.60, 449,544.90 and 122,217.45

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Solution

The fourth proportional to 299,696.60, 449,544.90 and 122,217.45 is: 183,326.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,696.60 : 449,544.90 = 122,217.45 : x
  2. Step 2: Convert to fraction form
    299,696.60/449,544.90 = 122,217.45/x
  3. Step 3: Cross multiply
    299,696.60x = 449,544.90 × 122,217.45
  4. Step 4: Simplify right side
    299,696.60x = 54,942,231,338.51
  5. Step 5: Solve for x
    x = 54,942,231,338.51/299,696.60
  6. Step 6: Final answer
    x = 183,326.18

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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.