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Finding the Fourth Proportional to 218,406.88, 327,573.78 and 60,651.28

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Solution

The fourth proportional to 218,406.88, 327,573.78 and 60,651.28 is: 90,966.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,406.88 : 327,573.78 = 60,651.28 : x
  2. Step 2: Convert to fraction form
    218,406.88/327,573.78 = 60,651.28/x
  3. Step 3: Cross multiply
    218,406.88x = 327,573.78 × 60,651.28
  4. Step 4: Simplify right side
    218,406.88x = 19,867,769,051.44
  5. Step 5: Solve for x
    x = 19,867,769,051.44/218,406.88
  6. Step 6: Final answer
    x = 90,966.77

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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.