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Finding the Fourth Proportional to 218,068.62, 327,102.81 and 58,144.62

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Solution

The fourth proportional to 218,068.62, 327,102.81 and 58,144.62 is: 87,216.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,068.62 : 327,102.81 = 58,144.62 : x
  2. Step 2: Convert to fraction form
    218,068.62/327,102.81 = 58,144.62/x
  3. Step 3: Cross multiply
    218,068.62x = 327,102.81 × 58,144.62
  4. Step 4: Simplify right side
    218,068.62x = 19,019,268,588.38
  5. Step 5: Solve for x
    x = 19,019,268,588.38/218,068.62
  6. Step 6: Final answer
    x = 87,216.90

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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.