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Finding the Fourth Proportional to 122,229.69, 168,677.31 and 67,785.69

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Solution

The fourth proportional to 122,229.69, 168,677.31 and 67,785.69 is: 93,544.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,229.69 : 168,677.31 = 67,785.69 : x
  2. Step 2: Convert to fraction form
    122,229.69/168,677.31 = 67,785.69/x
  3. Step 3: Cross multiply
    122,229.69x = 168,677.31 × 67,785.69
  4. Step 4: Simplify right side
    122,229.69x = 11,433,907,845.69
  5. Step 5: Solve for x
    x = 11,433,907,845.69/122,229.69
  6. Step 6: Final answer
    x = 93,544.44

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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.