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Finding the Fourth Proportional to 189,452.52, 261,435.60 and 108,823.32

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Solution

The fourth proportional to 189,452.52, 261,435.60 and 108,823.32 is: 150,171.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    189,452.52 : 261,435.60 = 108,823.32 : x
  2. Step 2: Convert to fraction form
    189,452.52/261,435.60 = 108,823.32/x
  3. Step 3: Cross multiply
    189,452.52x = 261,435.60 × 108,823.32
  4. Step 4: Simplify right side
    189,452.52x = 28,450,289,958.19
  5. Step 5: Solve for x
    x = 28,450,289,958.19/189,452.52
  6. Step 6: Final answer
    x = 150,171.08

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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.