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Finding the Fourth Proportional to 186,745.32, 279,940.68 and 74,494.44

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Solution

The fourth proportional to 186,745.32, 279,940.68 and 74,494.44 is: 111,670.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,745.32 : 279,940.68 = 74,494.44 : x
  2. Step 2: Convert to fraction form
    186,745.32/279,940.68 = 74,494.44/x
  3. Step 3: Cross multiply
    186,745.32x = 279,940.68 × 74,494.44
  4. Step 4: Simplify right side
    186,745.32x = 20,854,024,189.82
  5. Step 5: Solve for x
    x = 20,854,024,189.82/186,745.32
  6. Step 6: Final answer
    x = 111,670.93

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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.