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Finding the Fourth Proportional to 271,786.77, 375,070.68 and 149,278.32

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Solution

The fourth proportional to 271,786.77, 375,070.68 and 149,278.32 is: 206,006.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    271,786.77 : 375,070.68 = 149,278.32 : x
  2. Step 2: Convert to fraction form
    271,786.77/375,070.68 = 149,278.32/x
  3. Step 3: Cross multiply
    271,786.77x = 375,070.68 × 149,278.32
  4. Step 4: Simplify right side
    271,786.77x = 55,989,920,991.66
  5. Step 5: Solve for x
    x = 55,989,920,991.66/271,786.77
  6. Step 6: Final answer
    x = 206,006.79

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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.