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Finding the Fourth Proportional to 299,607.20, 449,475.60 and 99,893.60

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Solution

The fourth proportional to 299,607.20, 449,475.60 and 99,893.60 is: 149,862.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,607.20 : 449,475.60 = 99,893.60 : x
  2. Step 2: Convert to fraction form
    299,607.20/449,475.60 = 99,893.60/x
  3. Step 3: Cross multiply
    299,607.20x = 449,475.60 × 99,893.60
  4. Step 4: Simplify right side
    299,607.20x = 44,899,735,796.16
  5. Step 5: Solve for x
    x = 44,899,735,796.16/299,607.20
  6. Step 6: Final answer
    x = 149,862.01

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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.