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Finding the Fourth Proportional to 55,201.20, 82,812.60 and 23,611.20

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Solution

The fourth proportional to 55,201.20, 82,812.60 and 23,611.20 is: 35,421.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,201.20 : 82,812.60 = 23,611.20 : x
  2. Step 2: Convert to fraction form
    55,201.20/82,812.60 = 23,611.20/x
  3. Step 3: Cross multiply
    55,201.20x = 82,812.60 × 23,611.20
  4. Step 4: Simplify right side
    55,201.20x = 1,955,304,861.12
  5. Step 5: Solve for x
    x = 1,955,304,861.12/55,201.20
  6. Step 6: Final answer
    x = 35,421.42

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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.