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Finding the Fourth Proportional to 271,893.68, 375,215.80 and 158,694.32

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Solution

The fourth proportional to 271,893.68, 375,215.80 and 158,694.32 is: 218,999.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,893.68 : 375,215.80 = 158,694.32 : x
  2. Step 2: Convert to fraction form
    271,893.68/375,215.80 = 158,694.32/x
  3. Step 3: Cross multiply
    271,893.68x = 375,215.80 × 158,694.32
  4. Step 4: Simplify right side
    271,893.68x = 59,544,616,234.26
  5. Step 5: Solve for x
    x = 59,544,616,234.26/271,893.68
  6. Step 6: Final answer
    x = 218,999.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.