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Finding the Fourth Proportional to 299,361.64, 449,116.86 and 88,999.24

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Solution

The fourth proportional to 299,361.64, 449,116.86 and 88,999.24 is: 133,520.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,361.64 : 449,116.86 = 88,999.24 : x
  2. Step 2: Convert to fraction form
    299,361.64/449,116.86 = 88,999.24/x
  3. Step 3: Cross multiply
    299,361.64x = 449,116.86 × 88,999.24
  4. Step 4: Simplify right side
    299,361.64x = 39,971,059,211.19
  5. Step 5: Solve for x
    x = 39,971,059,211.19/299,361.64
  6. Step 6: Final answer
    x = 133,520.98

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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.