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Finding the Fourth Proportional to 166,478.99, 229,741.88 and 91,027.49

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Solution

The fourth proportional to 166,478.99, 229,741.88 and 91,027.49 is: 125,618.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,478.99 : 229,741.88 = 91,027.49 : x
  2. Step 2: Convert to fraction form
    166,478.99/229,741.88 = 91,027.49/x
  3. Step 3: Cross multiply
    166,478.99x = 229,741.88 × 91,027.49
  4. Step 4: Simplify right side
    166,478.99x = 20,912,825,080.43
  5. Step 5: Solve for x
    x = 20,912,825,080.43/166,478.99
  6. Step 6: Final answer
    x = 125,618.41

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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.