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Finding the Fourth Proportional to 188,813.84, 260,563.92 and 108,246.02

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Solution

The fourth proportional to 188,813.84, 260,563.92 and 108,246.02 is: 149,379.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,813.84 : 260,563.92 = 108,246.02 : x
  2. Step 2: Convert to fraction form
    188,813.84/260,563.92 = 108,246.02/x
  3. Step 3: Cross multiply
    188,813.84x = 260,563.92 × 108,246.02
  4. Step 4: Simplify right side
    188,813.84x = 28,205,007,295.60
  5. Step 5: Solve for x
    x = 28,205,007,295.60/188,813.84
  6. Step 6: Final answer
    x = 149,379.98

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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.