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Finding the Fourth Proportional to 122,391.35, 168,891.20 and 67,946.44

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Solution

The fourth proportional to 122,391.35, 168,891.20 and 67,946.44 is: 93,761.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,391.35 : 168,891.20 = 67,946.44 : x
  2. Step 2: Convert to fraction form
    122,391.35/168,891.20 = 67,946.44/x
  3. Step 3: Cross multiply
    122,391.35x = 168,891.20 × 67,946.44
  4. Step 4: Simplify right side
    122,391.35x = 11,475,555,025.37
  5. Step 5: Solve for x
    x = 11,475,555,025.37/122,391.35
  6. Step 6: Final answer
    x = 93,761.16

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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.