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Finding the Fourth Proportional to 216,578.88, 324,644.76 and 104,089.32

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Solution

The fourth proportional to 216,578.88, 324,644.76 and 104,089.32 is: 156,026.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,578.88 : 324,644.76 = 104,089.32 : x
  2. Step 2: Convert to fraction form
    216,578.88/324,644.76 = 104,089.32/x
  3. Step 3: Cross multiply
    216,578.88x = 324,644.76 × 104,089.32
  4. Step 4: Simplify right side
    216,578.88x = 33,792,052,309.96
  5. Step 5: Solve for x
    x = 33,792,052,309.96/216,578.88
  6. Step 6: Final answer
    x = 156,026.54

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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.