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Finding the Fourth Proportional to 218,099.61, 327,164.97 and 58,174.65

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Solution

The fourth proportional to 218,099.61, 327,164.97 and 58,174.65 is: 87,266.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,099.61 : 327,164.97 = 58,174.65 : x
  2. Step 2: Convert to fraction form
    218,099.61/327,164.97 = 58,174.65/x
  3. Step 3: Cross multiply
    218,099.61x = 327,164.97 × 58,174.65
  4. Step 4: Simplify right side
    218,099.61x = 19,032,707,622.01
  5. Step 5: Solve for x
    x = 19,032,707,622.01/218,099.61
  6. Step 6: Final answer
    x = 87,266.12

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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.