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Finding the Fourth Proportional to 119,522.84, 179,043.80 and 55,391.09

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Solution

The fourth proportional to 119,522.84, 179,043.80 and 55,391.09 is: 82,975.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,522.84 : 179,043.80 = 55,391.09 : x
  2. Step 2: Convert to fraction form
    119,522.84/179,043.80 = 55,391.09/x
  3. Step 3: Cross multiply
    119,522.84x = 179,043.80 × 55,391.09
  4. Step 4: Simplify right side
    119,522.84x = 9,917,430,067.57
  5. Step 5: Solve for x
    x = 9,917,430,067.57/119,522.84
  6. Step 6: Final answer
    x = 82,975.19

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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.