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Finding the Fourth Proportional to 122,325.70, 168,795.90 and 68,599.60

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Solution

The fourth proportional to 122,325.70, 168,795.90 and 68,599.60 is: 94,659.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,325.70 : 168,795.90 = 68,599.60 : x
  2. Step 2: Convert to fraction form
    122,325.70/168,795.90 = 68,599.60/x
  3. Step 3: Cross multiply
    122,325.70x = 168,795.90 × 68,599.60
  4. Step 4: Simplify right side
    122,325.70x = 11,579,331,221.64
  5. Step 5: Solve for x
    x = 11,579,331,221.64/122,325.70
  6. Step 6: Final answer
    x = 94,659.84

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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.