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Finding the Fourth Proportional to 218,389.86, 327,586.61 and 60,630.62

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Solution

The fourth proportional to 218,389.86, 327,586.61 and 60,630.62 is: 90,946.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,389.86 : 327,586.61 = 60,630.62 : x
  2. Step 2: Convert to fraction form
    218,389.86/327,586.61 = 60,630.62/x
  3. Step 3: Cross multiply
    218,389.86x = 327,586.61 × 60,630.62
  4. Step 4: Simplify right side
    218,389.86x = 19,861,777,326.91
  5. Step 5: Solve for x
    x = 19,861,777,326.91/218,389.86
  6. Step 6: Final answer
    x = 90,946.43

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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.