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Finding the Fourth Proportional to 110,955.60, 166,611.60 and 102,769.20

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Solution

The fourth proportional to 110,955.60, 166,611.60 and 102,769.20 is: 154,318.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,955.60 : 166,611.60 = 102,769.20 : x
  2. Step 2: Convert to fraction form
    110,955.60/166,611.60 = 102,769.20/x
  3. Step 3: Cross multiply
    110,955.60x = 166,611.60 × 102,769.20
  4. Step 4: Simplify right side
    110,955.60x = 17,122,540,842.72
  5. Step 5: Solve for x
    x = 17,122,540,842.72/110,955.60
  6. Step 6: Final answer
    x = 154,318.85

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.