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Finding the Fourth Proportional to 216,232.56, 324,423.72 and 89,940.96

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Solution

The fourth proportional to 216,232.56, 324,423.72 and 89,940.96 is: 134,942.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,232.56 : 324,423.72 = 89,940.96 : x
  2. Step 2: Convert to fraction form
    216,232.56/324,423.72 = 89,940.96/x
  3. Step 3: Cross multiply
    216,232.56x = 324,423.72 × 89,940.96
  4. Step 4: Simplify right side
    216,232.56x = 29,178,980,823.57
  5. Step 5: Solve for x
    x = 29,178,980,823.57/216,232.56
  6. Step 6: Final answer
    x = 134,942.59

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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.