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Finding the Fourth Proportional to 118,583.94, 163,649.88 and 67,604.21

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Solution

The fourth proportional to 118,583.94, 163,649.88 and 67,604.21 is: 93,296.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,583.94 : 163,649.88 = 67,604.21 : x
  2. Step 2: Convert to fraction form
    118,583.94/163,649.88 = 67,604.21/x
  3. Step 3: Cross multiply
    118,583.94x = 163,649.88 × 67,604.21
  4. Step 4: Simplify right side
    118,583.94x = 11,063,420,853.99
  5. Step 5: Solve for x
    x = 11,063,420,853.99/118,583.94
  6. Step 6: Final answer
    x = 93,296.11

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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.