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Finding the Fourth Proportional to 216,617.37, 324,787.64 and 104,073.68

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Solution

The fourth proportional to 216,617.37, 324,787.64 and 104,073.68 is: 156,044.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,617.37 : 324,787.64 = 104,073.68 : x
  2. Step 2: Convert to fraction form
    216,617.37/324,787.64 = 104,073.68/x
  3. Step 3: Cross multiply
    216,617.37x = 324,787.64 × 104,073.68
  4. Step 4: Simplify right side
    216,617.37x = 33,801,842,769.01
  5. Step 5: Solve for x
    x = 33,801,842,769.01/216,617.37
  6. Step 6: Final answer
    x = 156,044.01

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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.