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Finding the Fourth Proportional to 254,361.54, 381,043.49 and 147,521.04

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Solution

The fourth proportional to 254,361.54, 381,043.49 and 147,521.04 is: 220,992.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,361.54 : 381,043.49 = 147,521.04 : x
  2. Step 2: Convert to fraction form
    254,361.54/381,043.49 = 147,521.04/x
  3. Step 3: Cross multiply
    254,361.54x = 381,043.49 × 147,521.04
  4. Step 4: Simplify right side
    254,361.54x = 56,211,932,736.69
  5. Step 5: Solve for x
    x = 56,211,932,736.69/254,361.54
  6. Step 6: Final answer
    x = 220,992.27

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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.