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Finding the Fourth Proportional to 146,892.80, 220,371.60 and 47,057.60

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Solution

The fourth proportional to 146,892.80, 220,371.60 and 47,057.60 is: 70,596.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,892.80 : 220,371.60 = 47,057.60 : x
  2. Step 2: Convert to fraction form
    146,892.80/220,371.60 = 47,057.60/x
  3. Step 3: Cross multiply
    146,892.80x = 220,371.60 × 47,057.60
  4. Step 4: Simplify right side
    146,892.80x = 10,370,158,604.16
  5. Step 5: Solve for x
    x = 10,370,158,604.16/146,892.80
  6. Step 6: Final answer
    x = 70,596.78

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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.