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Finding the Fourth Proportional to 121,063.11, 167,067.41 and 67,348.50

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Solution

The fourth proportional to 121,063.11, 167,067.41 and 67,348.50 is: 92,941.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,063.11 : 167,067.41 = 67,348.50 : x
  2. Step 2: Convert to fraction form
    121,063.11/167,067.41 = 67,348.50/x
  3. Step 3: Cross multiply
    121,063.11x = 167,067.41 × 67,348.50
  4. Step 4: Simplify right side
    121,063.11x = 11,251,739,125.64
  5. Step 5: Solve for x
    x = 11,251,739,125.64/121,063.11
  6. Step 6: Final answer
    x = 92,941.10

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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.