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Finding the Fourth Proportional to 218,408.88, 327,576.78 and 60,653.28

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Solution

The fourth proportional to 218,408.88, 327,576.78 and 60,653.28 is: 90,969.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,408.88 : 327,576.78 = 60,653.28 : x
  2. Step 2: Convert to fraction form
    218,408.88/327,576.78 = 60,653.28/x
  3. Step 3: Cross multiply
    218,408.88x = 327,576.78 × 60,653.28
  4. Step 4: Simplify right side
    218,408.88x = 19,868,606,158.84
  5. Step 5: Solve for x
    x = 19,868,606,158.84/218,408.88
  6. Step 6: Final answer
    x = 90,969.77

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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.