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Finding the Fourth Proportional to 119,863.82, 179,736.80 and 69,956.48

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Solution

The fourth proportional to 119,863.82, 179,736.80 and 69,956.48 is: 104,900.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,863.82 : 179,736.80 = 69,956.48 : x
  2. Step 2: Convert to fraction form
    119,863.82/179,736.80 = 69,956.48/x
  3. Step 3: Cross multiply
    119,863.82x = 179,736.80 × 69,956.48
  4. Step 4: Simplify right side
    119,863.82x = 12,573,753,954.02
  5. Step 5: Solve for x
    x = 12,573,753,954.02/119,863.82
  6. Step 6: Final answer
    x = 104,900.33

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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.