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Finding the Fourth Proportional to 186,559.44, 279,662.84 and 74,308.96

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Solution

The fourth proportional to 186,559.44, 279,662.84 and 74,308.96 is: 111,393.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,559.44 : 279,662.84 = 74,308.96 : x
  2. Step 2: Convert to fraction form
    186,559.44/279,662.84 = 74,308.96/x
  3. Step 3: Cross multiply
    186,559.44x = 279,662.84 × 74,308.96
  4. Step 4: Simplify right side
    186,559.44x = 20,781,454,791.05
  5. Step 5: Solve for x
    x = 20,781,454,791.05/186,559.44
  6. Step 6: Final answer
    x = 111,393.21

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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.