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Finding the Fourth Proportional to 74,599.80, 111,899.70 and 25,351.80

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Solution

The fourth proportional to 74,599.80, 111,899.70 and 25,351.80 is: 38,027.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,599.80 : 111,899.70 = 25,351.80 : x
  2. Step 2: Convert to fraction form
    74,599.80/111,899.70 = 25,351.80/x
  3. Step 3: Cross multiply
    74,599.80x = 111,899.70 × 25,351.80
  4. Step 4: Simplify right side
    74,599.80x = 2,836,858,814.46
  5. Step 5: Solve for x
    x = 2,836,858,814.46/74,599.80
  6. Step 6: Final answer
    x = 38,027.70

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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.