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Finding the Fourth Proportional to 198,851.54, 274,310.52 and 118,221.71

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Solution

The fourth proportional to 198,851.54, 274,310.52 and 118,221.71 is: 163,083.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    198,851.54 : 274,310.52 = 118,221.71 : x
  2. Step 2: Convert to fraction form
    198,851.54/274,310.52 = 118,221.71/x
  3. Step 3: Cross multiply
    198,851.54x = 274,310.52 × 118,221.71
  4. Step 4: Simplify right side
    198,851.54x = 32,429,458,745.39
  5. Step 5: Solve for x
    x = 32,429,458,745.39/198,851.54
  6. Step 6: Final answer
    x = 163,083.77

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1.5x scale

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.