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Finding the Fourth Proportional to 274,080.44, 378,233.82 and 153,228.44

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Solution

The fourth proportional to 274,080.44, 378,233.82 and 153,228.44 is: 211,456.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,080.44 : 378,233.82 = 153,228.44 : x
  2. Step 2: Convert to fraction form
    274,080.44/378,233.82 = 153,228.44/x
  3. Step 3: Cross multiply
    274,080.44x = 378,233.82 × 153,228.44
  4. Step 4: Simplify right side
    274,080.44x = 57,956,178,193.84
  5. Step 5: Solve for x
    x = 57,956,178,193.84/274,080.44
  6. Step 6: Final answer
    x = 211,456.82

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1.5x scale

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.