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Finding the Fourth Proportional to 146,753.20, 220,216.20 and 53,246.80

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Solution

The fourth proportional to 146,753.20, 220,216.20 and 53,246.80 is: 79,901.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,753.20 : 220,216.20 = 53,246.80 : x
  2. Step 2: Convert to fraction form
    146,753.20/220,216.20 = 53,246.80/x
  3. Step 3: Cross multiply
    146,753.20x = 220,216.20 × 53,246.80
  4. Step 4: Simplify right side
    146,753.20x = 11,725,807,958.16
  5. Step 5: Solve for x
    x = 11,725,807,958.16/146,753.20
  6. Step 6: Final answer
    x = 79,901.55

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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.