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Finding the Fourth Proportional to 169,361.89, 254,043.29 and 57,120.96

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Solution

The fourth proportional to 169,361.89, 254,043.29 and 57,120.96 is: 85,681.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    169,361.89 : 254,043.29 = 57,120.96 : x
  2. Step 2: Convert to fraction form
    169,361.89/254,043.29 = 57,120.96/x
  3. Step 3: Cross multiply
    169,361.89x = 254,043.29 × 57,120.96
  4. Step 4: Simplify right side
    169,361.89x = 14,511,196,606.36
  5. Step 5: Solve for x
    x = 14,511,196,606.36/169,361.89
  6. Step 6: Final answer
    x = 85,681.59

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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.