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Finding the Fourth Proportional to 68,361.44, 102,549.48 and 28,922.54

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Solution

The fourth proportional to 68,361.44, 102,549.48 and 28,922.54 is: 43,386.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,361.44 : 102,549.48 = 28,922.54 : x
  2. Step 2: Convert to fraction form
    68,361.44/102,549.48 = 28,922.54/x
  3. Step 3: Cross multiply
    68,361.44x = 102,549.48 × 28,922.54
  4. Step 4: Simplify right side
    68,361.44x = 2,965,991,437.28
  5. Step 5: Solve for x
    x = 2,965,991,437.28/68,361.44
  6. Step 6: Final answer
    x = 43,386.91

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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.