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Finding the Fourth Proportional to 119,855.79, 179,863.94 and 49,735.17

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Solution

The fourth proportional to 119,855.79, 179,863.94 and 49,735.17 is: 74,636.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,855.79 : 179,863.94 = 49,735.17 : x
  2. Step 2: Convert to fraction form
    119,855.79/179,863.94 = 49,735.17/x
  3. Step 3: Cross multiply
    119,855.79x = 179,863.94 × 49,735.17
  4. Step 4: Simplify right side
    119,855.79x = 8,945,563,757.11
  5. Step 5: Solve for x
    x = 8,945,563,757.11/119,855.79
  6. Step 6: Final answer
    x = 74,636.06

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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.