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Finding the Fourth Proportional to 178,231.32, 267,391.53 and 125,743.32

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Solution

The fourth proportional to 178,231.32, 267,391.53 and 125,743.32 is: 188,646.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,231.32 : 267,391.53 = 125,743.32 : x
  2. Step 2: Convert to fraction form
    178,231.32/267,391.53 = 125,743.32/x
  3. Step 3: Cross multiply
    178,231.32x = 267,391.53 × 125,743.32
  4. Step 4: Simplify right side
    178,231.32x = 33,622,698,722.08
  5. Step 5: Solve for x
    x = 33,622,698,722.08/178,231.32
  6. Step 6: Final answer
    x = 188,646.41

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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.