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Finding the Fourth Proportional to 218,552.24, 327,828.72 and 60,780.80

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Solution

The fourth proportional to 218,552.24, 327,828.72 and 60,780.80 is: 91,171.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,552.24 : 327,828.72 = 60,780.80 : x
  2. Step 2: Convert to fraction form
    218,552.24/327,828.72 = 60,780.80/x
  3. Step 3: Cross multiply
    218,552.24x = 327,828.72 × 60,780.80
  4. Step 4: Simplify right side
    218,552.24x = 19,925,691,864.58
  5. Step 5: Solve for x
    x = 19,925,691,864.58/218,552.24
  6. Step 6: Final answer
    x = 91,171.30

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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.