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Finding the Fourth Proportional to 163,466.90, 225,584.52 and 91,846.88

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Solution

The fourth proportional to 163,466.90, 225,584.52 and 91,846.88 is: 126,748.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,466.90 : 225,584.52 = 91,846.88 : x
  2. Step 2: Convert to fraction form
    163,466.90/225,584.52 = 91,846.88/x
  3. Step 3: Cross multiply
    163,466.90x = 225,584.52 × 91,846.88
  4. Step 4: Simplify right side
    163,466.90x = 20,719,234,338.30
  5. Step 5: Solve for x
    x = 20,719,234,338.30/163,466.90
  6. Step 6: Final answer
    x = 126,748.81

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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.