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Finding the Fourth Proportional to 220,679.60, 330,760.18 and 102,100.48

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Solution

The fourth proportional to 220,679.60, 330,760.18 and 102,100.48 is: 153,030.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,679.60 : 330,760.18 = 102,100.48 : x
  2. Step 2: Convert to fraction form
    220,679.60/330,760.18 = 102,100.48/x
  3. Step 3: Cross multiply
    220,679.60x = 330,760.18 × 102,100.48
  4. Step 4: Simplify right side
    220,679.60x = 33,770,773,142.89
  5. Step 5: Solve for x
    x = 33,770,773,142.89/220,679.60
  6. Step 6: Final answer
    x = 153,030.79

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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.