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Finding the Fourth Proportional to 281,954.61, 422,956.78 and 79,552.49

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Solution

The fourth proportional to 281,954.61, 422,956.78 and 79,552.49 is: 119,335.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,954.61 : 422,956.78 = 79,552.49 : x
  2. Step 2: Convert to fraction form
    281,954.61/422,956.78 = 79,552.49/x
  3. Step 3: Cross multiply
    281,954.61x = 422,956.78 × 79,552.49
  4. Step 4: Simplify right side
    281,954.61x = 33,647,263,386.66
  5. Step 5: Solve for x
    x = 33,647,263,386.66/281,954.61
  6. Step 6: Final answer
    x = 119,335.75

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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.