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Finding the Fourth Proportional to 162,696.44, 244,202.48 and 78,515.85

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Solution

The fourth proportional to 162,696.44, 244,202.48 and 78,515.85 is: 117,849.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    162,696.44 : 244,202.48 = 78,515.85 : x
  2. Step 2: Convert to fraction form
    162,696.44/244,202.48 = 78,515.85/x
  3. Step 3: Cross multiply
    162,696.44x = 244,202.48 × 78,515.85
  4. Step 4: Simplify right side
    162,696.44x = 19,173,765,289.31
  5. Step 5: Solve for x
    x = 19,173,765,289.31/162,696.44
  6. Step 6: Final answer
    x = 117,849.94

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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.