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Finding the Fourth Proportional to 179,342.70, 268,992.45 and 74,150.70

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Solution

The fourth proportional to 179,342.70, 268,992.45 and 74,150.70 is: 111,217.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,342.70 : 268,992.45 = 74,150.70 : x
  2. Step 2: Convert to fraction form
    179,342.70/268,992.45 = 74,150.70/x
  3. Step 3: Cross multiply
    179,342.70x = 268,992.45 × 74,150.70
  4. Step 4: Simplify right side
    179,342.70x = 19,945,978,462.22
  5. Step 5: Solve for x
    x = 19,945,978,462.22/179,342.70
  6. Step 6: Final answer
    x = 111,217.12

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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.