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Finding the Fourth Proportional to 122,322.62, 168,733.50 and 76,928.60

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Solution

The fourth proportional to 122,322.62, 168,733.50 and 76,928.60 is: 106,116.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,322.62 : 168,733.50 = 76,928.60 : x
  2. Step 2: Convert to fraction form
    122,322.62/168,733.50 = 76,928.60/x
  3. Step 3: Cross multiply
    122,322.62x = 168,733.50 × 76,928.60
  4. Step 4: Simplify right side
    122,322.62x = 12,980,431,928.10
  5. Step 5: Solve for x
    x = 12,980,431,928.10/122,322.62
  6. Step 6: Final answer
    x = 106,116.37

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.