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Finding the Fourth Proportional to 299,261.76, 449,057.88 and 121,893.64

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Solution

The fourth proportional to 299,261.76, 449,057.88 and 121,893.64 is: 182,907.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,261.76 : 449,057.88 = 121,893.64 : x
  2. Step 2: Convert to fraction form
    299,261.76/449,057.88 = 121,893.64/x
  3. Step 3: Cross multiply
    299,261.76x = 449,057.88 × 121,893.64
  4. Step 4: Simplify right side
    299,261.76x = 54,737,299,563.88
  5. Step 5: Solve for x
    x = 54,737,299,563.88/299,261.76
  6. Step 6: Final answer
    x = 182,907.76

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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.