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Finding the Fourth Proportional to 231,993.10, 347,823.60 and 89,716.60

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Solution

The fourth proportional to 231,993.10, 347,823.60 and 89,716.60 is: 134,510.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    231,993.10 : 347,823.60 = 89,716.60 : x
  2. Step 2: Convert to fraction form
    231,993.10/347,823.60 = 89,716.60/x
  3. Step 3: Cross multiply
    231,993.10x = 347,823.60 × 89,716.60
  4. Step 4: Simplify right side
    231,993.10x = 31,205,550,791.76
  5. Step 5: Solve for x
    x = 31,205,550,791.76/231,993.10
  6. Step 6: Final answer
    x = 134,510.68

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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.