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Finding the Fourth Proportional to 118,584.94, 163,651.26 and 67,605.21

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Solution

The fourth proportional to 118,584.94, 163,651.26 and 67,605.21 is: 93,297.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,584.94 : 163,651.26 = 67,605.21 : x
  2. Step 2: Convert to fraction form
    118,584.94/163,651.26 = 67,605.21/x
  3. Step 3: Cross multiply
    118,584.94x = 163,651.26 × 67,605.21
  4. Step 4: Simplify right side
    118,584.94x = 11,063,677,799.06
  5. Step 5: Solve for x
    x = 11,063,677,799.06/118,584.94
  6. Step 6: Final answer
    x = 93,297.49

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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.