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Finding the Fourth Proportional to 122,308.84, 168,778.24 and 68,593.48

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Solution

The fourth proportional to 122,308.84, 168,778.24 and 68,593.48 is: 94,654.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,308.84 : 168,778.24 = 68,593.48 : x
  2. Step 2: Convert to fraction form
    122,308.84/168,778.24 = 68,593.48/x
  3. Step 3: Cross multiply
    122,308.84x = 168,778.24 × 68,593.48
  4. Step 4: Simplify right side
    122,308.84x = 11,577,086,829.88
  5. Step 5: Solve for x
    x = 11,577,086,829.88/122,308.84
  6. Step 6: Final answer
    x = 94,654.54

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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.