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Finding the Fourth Proportional to 274,550.22, 378,858.42 and 153,663.84

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Solution

The fourth proportional to 274,550.22, 378,858.42 and 153,663.84 is: 212,044.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,550.22 : 378,858.42 = 153,663.84 : x
  2. Step 2: Convert to fraction form
    274,550.22/378,858.42 = 153,663.84/x
  3. Step 3: Cross multiply
    274,550.22x = 378,858.42 × 153,663.84
  4. Step 4: Simplify right side
    274,550.22x = 58,216,839,633.53
  5. Step 5: Solve for x
    x = 58,216,839,633.53/274,550.22
  6. Step 6: Final answer
    x = 212,044.41

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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.