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Finding the Fourth Proportional to 119,662.87, 179,494.09 and 55,585.97

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Solution

The fourth proportional to 119,662.87, 179,494.09 and 55,585.97 is: 83,378.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,662.87 : 179,494.09 = 55,585.97 : x
  2. Step 2: Convert to fraction form
    119,662.87/179,494.09 = 55,585.97/x
  3. Step 3: Cross multiply
    119,662.87x = 179,494.09 × 55,585.97
  4. Step 4: Simplify right side
    119,662.87x = 9,977,353,101.92
  5. Step 5: Solve for x
    x = 9,977,353,101.92/119,662.87
  6. Step 6: Final answer
    x = 83,378.86

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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.