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Finding the Fourth Proportional to 188,751.10, 260,487.72 and 108,183.83

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Solution

The fourth proportional to 188,751.10, 260,487.72 and 108,183.83 is: 149,300.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,751.10 : 260,487.72 = 108,183.83 : x
  2. Step 2: Convert to fraction form
    188,751.10/260,487.72 = 108,183.83/x
  3. Step 3: Cross multiply
    188,751.10x = 260,487.72 × 108,183.83
  4. Step 4: Simplify right side
    188,751.10x = 28,180,557,915.13
  5. Step 5: Solve for x
    x = 28,180,557,915.13/188,751.10
  6. Step 6: Final answer
    x = 149,300.10

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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.