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Finding the Fourth Proportional to 322,705.62, 445,299.66 and 179,442.54

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Solution

The fourth proportional to 322,705.62, 445,299.66 and 179,442.54 is: 247,611.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,705.62 : 445,299.66 = 179,442.54 : x
  2. Step 2: Convert to fraction form
    322,705.62/445,299.66 = 179,442.54/x
  3. Step 3: Cross multiply
    322,705.62x = 445,299.66 × 179,442.54
  4. Step 4: Simplify right side
    322,705.62x = 79,905,702,051.54
  5. Step 5: Solve for x
    x = 79,905,702,051.54/322,705.62
  6. Step 6: Final answer
    x = 247,611.75

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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.