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Finding the Fourth Proportional to 299,664.40, 449,496.60 and 122,074.60

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Solution

The fourth proportional to 299,664.40, 449,496.60 and 122,074.60 is: 183,111.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,664.40 : 449,496.60 = 122,074.60 : x
  2. Step 2: Convert to fraction form
    299,664.40/449,496.60 = 122,074.60/x
  3. Step 3: Cross multiply
    299,664.40x = 449,496.60 × 122,074.60
  4. Step 4: Simplify right side
    299,664.40x = 54,872,117,646.36
  5. Step 5: Solve for x
    x = 54,872,117,646.36/299,664.40
  6. Step 6: Final answer
    x = 183,111.90

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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.