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Finding the Fourth Proportional to 121,467.90, 167,597.19 and 73,720.14

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Solution

The fourth proportional to 121,467.90, 167,597.19 and 73,720.14 is: 101,716.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,467.90 : 167,597.19 = 73,720.14 : x
  2. Step 2: Convert to fraction form
    121,467.90/167,597.19 = 73,720.14/x
  3. Step 3: Cross multiply
    121,467.90x = 167,597.19 × 73,720.14
  4. Step 4: Simplify right side
    121,467.90x = 12,355,288,310.41
  5. Step 5: Solve for x
    x = 12,355,288,310.41/121,467.90
  6. Step 6: Final answer
    x = 101,716.49

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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.