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Finding the Fourth Proportional to 122,608.94, 169,194.94 and 71,626.39

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Solution

The fourth proportional to 122,608.94, 169,194.94 and 71,626.39 is: 98,841.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,608.94 : 169,194.94 = 71,626.39 : x
  2. Step 2: Convert to fraction form
    122,608.94/169,194.94 = 71,626.39/x
  3. Step 3: Cross multiply
    122,608.94x = 169,194.94 × 71,626.39
  4. Step 4: Simplify right side
    122,608.94x = 12,118,822,758.47
  5. Step 5: Solve for x
    x = 12,118,822,758.47/122,608.94
  6. Step 6: Final answer
    x = 98,841.27

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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.