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Finding the Fourth Proportional to 70,198.45, 96,629.75 and 61,230.33

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Solution

The fourth proportional to 70,198.45, 96,629.75 and 61,230.33 is: 84,284.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,198.45 : 96,629.75 = 61,230.33 : x
  2. Step 2: Convert to fraction form
    70,198.45/96,629.75 = 61,230.33/x
  3. Step 3: Cross multiply
    70,198.45x = 96,629.75 × 61,230.33
  4. Step 4: Simplify right side
    70,198.45x = 5,916,671,480.32
  5. Step 5: Solve for x
    x = 5,916,671,480.32/70,198.45
  6. Step 6: Final answer
    x = 84,284.93

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.