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Finding the Fourth Proportional to 79,955.46, 119,912.28 and 23,780.43

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Solution

The fourth proportional to 79,955.46, 119,912.28 and 23,780.43 is: 35,664.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,955.46 : 119,912.28 = 23,780.43 : x
  2. Step 2: Convert to fraction form
    79,955.46/119,912.28 = 23,780.43/x
  3. Step 3: Cross multiply
    79,955.46x = 119,912.28 × 23,780.43
  4. Step 4: Simplify right side
    79,955.46x = 2,851,565,580.68
  5. Step 5: Solve for x
    x = 2,851,565,580.68/79,955.46
  6. Step 6: Final answer
    x = 35,664.43

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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.