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Finding the Fourth Proportional to 268,954.70, 403,364.82 and 79,377.44

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Solution

The fourth proportional to 268,954.70, 403,364.82 and 79,377.44 is: 119,046.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,954.70 : 403,364.82 = 79,377.44 : x
  2. Step 2: Convert to fraction form
    268,954.70/403,364.82 = 79,377.44/x
  3. Step 3: Cross multiply
    268,954.70x = 403,364.82 × 79,377.44
  4. Step 4: Simplify right side
    268,954.70x = 32,018,064,780.84
  5. Step 5: Solve for x
    x = 32,018,064,780.84/268,954.70
  6. Step 6: Final answer
    x = 119,046.31

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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.