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Finding the Fourth Proportional to 146,896.60, 220,575.30 and 84,688.60

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Solution

The fourth proportional to 146,896.60, 220,575.30 and 84,688.60 is: 127,165.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,896.60 : 220,575.30 = 84,688.60 : x
  2. Step 2: Convert to fraction form
    146,896.60/220,575.30 = 84,688.60/x
  3. Step 3: Cross multiply
    146,896.60x = 220,575.30 × 84,688.60
  4. Step 4: Simplify right side
    146,896.60x = 18,680,213,351.58
  5. Step 5: Solve for x
    x = 18,680,213,351.58/146,896.60
  6. Step 6: Final answer
    x = 127,165.73

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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.