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Finding the Fourth Proportional to 220,597.37, 330,864.82 and 70,817.94

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Solution

The fourth proportional to 220,597.37, 330,864.82 and 70,817.94 is: 106,216.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,597.37 : 330,864.82 = 70,817.94 : x
  2. Step 2: Convert to fraction form
    220,597.37/330,864.82 = 70,817.94/x
  3. Step 3: Cross multiply
    220,597.37x = 330,864.82 × 70,817.94
  4. Step 4: Simplify right side
    220,597.37x = 23,431,164,793.83
  5. Step 5: Solve for x
    x = 23,431,164,793.83/220,597.37
  6. Step 6: Final answer
    x = 106,216.88

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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.