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Finding the Fourth Proportional to 121,087.76, 167,101.93 and 67,375.04

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Solution

The fourth proportional to 121,087.76, 167,101.93 and 67,375.04 is: 92,978.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,087.76 : 167,101.93 = 67,375.04 : x
  2. Step 2: Convert to fraction form
    121,087.76/167,101.93 = 67,375.04/x
  3. Step 3: Cross multiply
    121,087.76x = 167,101.93 × 67,375.04
  4. Step 4: Simplify right side
    121,087.76x = 11,258,499,217.83
  5. Step 5: Solve for x
    x = 11,258,499,217.83/121,087.76
  6. Step 6: Final answer
    x = 92,978.01

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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.