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Finding the Fourth Proportional to 199,480.74, 275,245.83 and 118,915.76

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Solution

The fourth proportional to 199,480.74, 275,245.83 and 118,915.76 is: 164,081.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,480.74 : 275,245.83 = 118,915.76 : x
  2. Step 2: Convert to fraction form
    199,480.74/275,245.83 = 118,915.76/x
  3. Step 3: Cross multiply
    199,480.74x = 275,245.83 × 118,915.76
  4. Step 4: Simplify right side
    199,480.74x = 32,731,065,685.05
  5. Step 5: Solve for x
    x = 32,731,065,685.05/199,480.74
  6. Step 6: Final answer
    x = 164,081.33

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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.