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Finding the Fourth Proportional to 220,601.74, 330,871.38 and 70,822.33

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Solution

The fourth proportional to 220,601.74, 330,871.38 and 70,822.33 is: 106,223.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,601.74 : 330,871.38 = 70,822.33 : x
  2. Step 2: Convert to fraction form
    220,601.74/330,871.38 = 70,822.33/x
  3. Step 3: Cross multiply
    220,601.74x = 330,871.38 × 70,822.33
  4. Step 4: Simplify right side
    220,601.74x = 23,433,082,061.92
  5. Step 5: Solve for x
    x = 23,433,082,061.92/220,601.74
  6. Step 6: Final answer
    x = 106,223.47

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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.