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Finding the Fourth Proportional to 121,137.96, 167,175.24 and 67,425.24

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Solution

The fourth proportional to 121,137.96, 167,175.24 and 67,425.24 is: 93,049.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,137.96 : 167,175.24 = 67,425.24 : x
  2. Step 2: Convert to fraction form
    121,137.96/167,175.24 = 67,425.24/x
  3. Step 3: Cross multiply
    121,137.96x = 167,175.24 × 67,425.24
  4. Step 4: Simplify right side
    121,137.96x = 11,271,830,679.06
  5. Step 5: Solve for x
    x = 11,271,830,679.06/121,137.96
  6. Step 6: Final answer
    x = 93,049.53

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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.