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Finding the Fourth Proportional to 218,558.99, 327,857.06 and 60,787.45

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Solution

The fourth proportional to 218,558.99, 327,857.06 and 60,787.45 is: 91,186.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,558.99 : 327,857.06 = 60,787.45 : x
  2. Step 2: Convert to fraction form
    218,558.99/327,857.06 = 60,787.45/x
  3. Step 3: Cross multiply
    218,558.99x = 327,857.06 × 60,787.45
  4. Step 4: Simplify right side
    218,558.99x = 19,929,594,641.90
  5. Step 5: Solve for x
    x = 19,929,594,641.90/218,558.99
  6. Step 6: Final answer
    x = 91,186.34

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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.