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Finding the Fourth Proportional to 122,460.75, 168,984.27 and 68,735.27

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Solution

The fourth proportional to 122,460.75, 168,984.27 and 68,735.27 is: 94,848.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,460.75 : 168,984.27 = 68,735.27 : x
  2. Step 2: Convert to fraction form
    122,460.75/168,984.27 = 68,735.27/x
  3. Step 3: Cross multiply
    122,460.75x = 168,984.27 × 68,735.27
  4. Step 4: Simplify right side
    122,460.75x = 11,615,179,424.20
  5. Step 5: Solve for x
    x = 11,615,179,424.20/122,460.75
  6. Step 6: Final answer
    x = 94,848.18

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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.