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Finding the Fourth Proportional to 218,471.24, 327,724.65 and 60,699.71

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Solution

The fourth proportional to 218,471.24, 327,724.65 and 60,699.71 is: 91,054.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,471.24 : 327,724.65 = 60,699.71 : x
  2. Step 2: Convert to fraction form
    218,471.24/327,724.65 = 60,699.71/x
  3. Step 3: Cross multiply
    218,471.24x = 327,724.65 × 60,699.71
  4. Step 4: Simplify right side
    218,471.24x = 19,892,792,034.16
  5. Step 5: Solve for x
    x = 19,892,792,034.16/218,471.24
  6. Step 6: Final answer
    x = 91,054.51

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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.