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Finding the Fourth Proportional to 84,448.98, 126,694.80 and 25,284.42

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Solution

The fourth proportional to 84,448.98, 126,694.80 and 25,284.42 is: 37,933.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,448.98 : 126,694.80 = 25,284.42 : x
  2. Step 2: Convert to fraction form
    84,448.98/126,694.80 = 25,284.42/x
  3. Step 3: Cross multiply
    84,448.98x = 126,694.80 × 25,284.42
  4. Step 4: Simplify right side
    84,448.98x = 3,203,404,535.02
  5. Step 5: Solve for x
    x = 3,203,404,535.02/84,448.98
  6. Step 6: Final answer
    x = 37,933.02

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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.