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Finding the Fourth Proportional to 198,672.40, 297,619.80 and 119,551.60

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Solution

The fourth proportional to 198,672.40, 297,619.80 and 119,551.60 is: 179,093.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,672.40 : 297,619.80 = 119,551.60 : x
  2. Step 2: Convert to fraction form
    198,672.40/297,619.80 = 119,551.60/x
  3. Step 3: Cross multiply
    198,672.40x = 297,619.80 × 119,551.60
  4. Step 4: Simplify right side
    198,672.40x = 35,580,923,281.68
  5. Step 5: Solve for x
    x = 35,580,923,281.68/198,672.40
  6. Step 6: Final answer
    x = 179,093.44

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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.