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Finding the Fourth Proportional to 321,181.40, 481,658.70 and 110,770.40

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Solution

The fourth proportional to 321,181.40, 481,658.70 and 110,770.40 is: 166,116.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,181.40 : 481,658.70 = 110,770.40 : x
  2. Step 2: Convert to fraction form
    321,181.40/481,658.70 = 110,770.40/x
  3. Step 3: Cross multiply
    321,181.40x = 481,658.70 × 110,770.40
  4. Step 4: Simplify right side
    321,181.40x = 53,353,526,862.48
  5. Step 5: Solve for x
    x = 53,353,526,862.48/321,181.40
  6. Step 6: Final answer
    x = 166,116.49

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1.5x scale

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.