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Finding the Fourth Proportional to 122,606.92, 168,806.44 and 104,629.80

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Solution

The fourth proportional to 122,606.92, 168,806.44 and 104,629.80 is: 144,055.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,606.92 : 168,806.44 = 104,629.80 : x
  2. Step 2: Convert to fraction form
    122,606.92/168,806.44 = 104,629.80/x
  3. Step 3: Cross multiply
    122,606.92x = 168,806.44 × 104,629.80
  4. Step 4: Simplify right side
    122,606.92x = 17,662,184,055.91
  5. Step 5: Solve for x
    x = 17,662,184,055.91/122,606.92
  6. Step 6: Final answer
    x = 144,055.36

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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.