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Finding the Fourth Proportional to 123,422.20, 185,133.30 and 44,548.60

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Solution

The fourth proportional to 123,422.20, 185,133.30 and 44,548.60 is: 66,822.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,422.20 : 185,133.30 = 44,548.60 : x
  2. Step 2: Convert to fraction form
    123,422.20/185,133.30 = 44,548.60/x
  3. Step 3: Cross multiply
    123,422.20x = 185,133.30 × 44,548.60
  4. Step 4: Simplify right side
    123,422.20x = 8,247,429,328.38
  5. Step 5: Solve for x
    x = 8,247,429,328.38/123,422.20
  6. Step 6: Final answer
    x = 66,822.90

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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.