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Finding the Fourth Proportional to 302,608.20, 453,912.30 and 92,245.80

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Solution

The fourth proportional to 302,608.20, 453,912.30 and 92,245.80 is: 138,368.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,608.20 : 453,912.30 = 92,245.80 : x
  2. Step 2: Convert to fraction form
    302,608.20/453,912.30 = 92,245.80/x
  3. Step 3: Cross multiply
    302,608.20x = 453,912.30 × 92,245.80
  4. Step 4: Simplify right side
    302,608.20x = 41,871,503,243.34
  5. Step 5: Solve for x
    x = 41,871,503,243.34/302,608.20
  6. Step 6: Final answer
    x = 138,368.70

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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.