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Finding the Fourth Proportional to 85,558.97, 118,102.64 and 51,568.67

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Solution

The fourth proportional to 85,558.97, 118,102.64 and 51,568.67 is: 71,183.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,558.97 : 118,102.64 = 51,568.67 : x
  2. Step 2: Convert to fraction form
    85,558.97/118,102.64 = 51,568.67/x
  3. Step 3: Cross multiply
    85,558.97x = 118,102.64 × 51,568.67
  4. Step 4: Simplify right side
    85,558.97x = 6,090,395,219.93
  5. Step 5: Solve for x
    x = 6,090,395,219.93/85,558.97
  6. Step 6: Final answer
    x = 71,183.60

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.