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Finding the Fourth Proportional to 299,692.88, 449,605.04 and 112,704.40

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Solution

The fourth proportional to 299,692.88, 449,605.04 and 112,704.40 is: 169,081.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,692.88 : 449,605.04 = 112,704.40 : x
  2. Step 2: Convert to fraction form
    299,692.88/449,605.04 = 112,704.40/x
  3. Step 3: Cross multiply
    299,692.88x = 449,605.04 × 112,704.40
  4. Step 4: Simplify right side
    299,692.88x = 50,672,466,270.18
  5. Step 5: Solve for x
    x = 50,672,466,270.18/299,692.88
  6. Step 6: Final answer
    x = 169,081.32

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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.