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Finding the Fourth Proportional to 108,828.50, 150,183.87 and 63,537.89

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Solution

The fourth proportional to 108,828.50, 150,183.87 and 63,537.89 is: 87,682.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,828.50 : 150,183.87 = 63,537.89 : x
  2. Step 2: Convert to fraction form
    108,828.50/150,183.87 = 63,537.89/x
  3. Step 3: Cross multiply
    108,828.50x = 150,183.87 × 63,537.89
  4. Step 4: Simplify right side
    108,828.50x = 9,542,366,211.83
  5. Step 5: Solve for x
    x = 9,542,366,211.83/108,828.50
  6. Step 6: Final answer
    x = 87,682.60

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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.