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Finding the Fourth Proportional to 199,179.94, 274,864.74 and 108,536.68

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Solution

The fourth proportional to 199,179.94, 274,864.74 and 108,536.68 is: 149,778.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,179.94 : 274,864.74 = 108,536.68 : x
  2. Step 2: Convert to fraction form
    199,179.94/274,864.74 = 108,536.68/x
  3. Step 3: Cross multiply
    199,179.94x = 274,864.74 × 108,536.68
  4. Step 4: Simplify right side
    199,179.94x = 29,832,906,328.66
  5. Step 5: Solve for x
    x = 29,832,906,328.66/199,179.94
  6. Step 6: Final answer
    x = 149,778.67

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.