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Finding the Fourth Proportional to 118,308.37, 163,269.12 and 67,328.41

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Solution

The fourth proportional to 118,308.37, 163,269.12 and 67,328.41 is: 92,915.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    118,308.37 : 163,269.12 = 67,328.41 : x
  2. Step 2: Convert to fraction form
    118,308.37/163,269.12 = 67,328.41/x
  3. Step 3: Cross multiply
    118,308.37x = 163,269.12 × 67,328.41
  4. Step 4: Simplify right side
    118,308.37x = 10,992,650,828.19
  5. Step 5: Solve for x
    x = 10,992,650,828.19/118,308.37
  6. Step 6: Final answer
    x = 92,915.24

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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.