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Finding the Fourth Proportional to 121,065.01, 167,067.21 and 67,348.87

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Solution

The fourth proportional to 121,065.01, 167,067.21 and 67,348.87 is: 92,940.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,065.01 : 167,067.21 = 67,348.87 : x
  2. Step 2: Convert to fraction form
    121,065.01/167,067.21 = 67,348.87/x
  3. Step 3: Cross multiply
    121,065.01x = 167,067.21 × 67,348.87
  4. Step 4: Simplify right side
    121,065.01x = 11,251,787,807.55
  5. Step 5: Solve for x
    x = 11,251,787,807.55/121,065.01
  6. Step 6: Final answer
    x = 92,940.05

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1.5x scale

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.