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Finding the Fourth Proportional to 121,079.32, 167,087.92 and 67,362.96

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Solution

The fourth proportional to 121,079.32, 167,087.92 and 67,362.96 is: 92,960.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,079.32 : 167,087.92 = 67,362.96 : x
  2. Step 2: Convert to fraction form
    121,079.32/167,087.92 = 67,362.96/x
  3. Step 3: Cross multiply
    121,079.32x = 167,087.92 × 67,362.96
  4. Step 4: Simplify right side
    121,079.32x = 11,255,536,871.44
  5. Step 5: Solve for x
    x = 11,255,536,871.44/121,079.32
  6. Step 6: Final answer
    x = 92,960.03

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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.