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Finding the Fourth Proportional to 197,192.70, 295,910.55 and 78,851.70

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Solution

The fourth proportional to 197,192.70, 295,910.55 and 78,851.70 is: 118,326.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    197,192.70 : 295,910.55 = 78,851.70 : x
  2. Step 2: Convert to fraction form
    197,192.70/295,910.55 = 78,851.70/x
  3. Step 3: Cross multiply
    197,192.70x = 295,910.55 × 78,851.70
  4. Step 4: Simplify right side
    197,192.70x = 23,333,049,915.44
  5. Step 5: Solve for x
    x = 23,333,049,915.44/197,192.70
  6. Step 6: Final answer
    x = 118,326.13

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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.