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Finding the Fourth Proportional to 218,133.07, 327,190.08 and 68,369.94

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Solution

The fourth proportional to 218,133.07, 327,190.08 and 68,369.94 is: 102,551.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,133.07 : 327,190.08 = 68,369.94 : x
  2. Step 2: Convert to fraction form
    218,133.07/327,190.08 = 68,369.94/x
  3. Step 3: Cross multiply
    218,133.07x = 327,190.08 × 68,369.94
  4. Step 4: Simplify right side
    218,133.07x = 22,369,966,394.58
  5. Step 5: Solve for x
    x = 22,369,966,394.58/218,133.07
  6. Step 6: Final answer
    x = 102,551.93

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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.