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Finding the Fourth Proportional to 299,616.60, 449,426.64 and 99,936.48

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Solution

The fourth proportional to 299,616.60, 449,426.64 and 99,936.48 is: 149,905.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,616.60 : 449,426.64 = 99,936.48 : x
  2. Step 2: Convert to fraction form
    299,616.60/449,426.64 = 99,936.48/x
  3. Step 3: Cross multiply
    299,616.60x = 449,426.64 × 99,936.48
  4. Step 4: Simplify right side
    299,616.60x = 44,914,116,419.83
  5. Step 5: Solve for x
    x = 44,914,116,419.83/299,616.60
  6. Step 6: Final answer
    x = 149,905.30

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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.