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Finding the Fourth Proportional to 146,630.94, 220,056.96 and 107,289.54

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Solution

The fourth proportional to 146,630.94, 220,056.96 and 107,289.54 is: 161,015.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,630.94 : 220,056.96 = 107,289.54 : x
  2. Step 2: Convert to fraction form
    146,630.94/220,056.96 = 107,289.54/x
  3. Step 3: Cross multiply
    146,630.94x = 220,056.96 × 107,289.54
  4. Step 4: Simplify right side
    146,630.94x = 23,609,810,012.20
  5. Step 5: Solve for x
    x = 23,609,810,012.20/146,630.94
  6. Step 6: Final answer
    x = 161,015.20

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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.