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Finding the Fourth Proportional to 119,976.34, 165,599.43 and 68,994.67

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Solution

The fourth proportional to 119,976.34, 165,599.43 and 68,994.67 is: 95,231.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    119,976.34 : 165,599.43 = 68,994.67 : x
  2. Step 2: Convert to fraction form
    119,976.34/165,599.43 = 68,994.67/x
  3. Step 3: Cross multiply
    119,976.34x = 165,599.43 × 68,994.67
  4. Step 4: Simplify right side
    119,976.34x = 11,425,478,025.04
  5. Step 5: Solve for x
    x = 11,425,478,025.04/119,976.34
  6. Step 6: Final answer
    x = 95,231.09

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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.