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Finding the Fourth Proportional to 188,645.80, 282,960.60 and 63,986.80

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Solution

The fourth proportional to 188,645.80, 282,960.60 and 63,986.80 is: 95,977.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,645.80 : 282,960.60 = 63,986.80 : x
  2. Step 2: Convert to fraction form
    188,645.80/282,960.60 = 63,986.80/x
  3. Step 3: Cross multiply
    188,645.80x = 282,960.60 × 63,986.80
  4. Step 4: Simplify right side
    188,645.80x = 18,105,743,320.08
  5. Step 5: Solve for x
    x = 18,105,743,320.08/188,645.80
  6. Step 6: Final answer
    x = 95,977.45

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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.