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Finding the Fourth Proportional to 121,604.49, 167,807.14 and 67,892.88

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Solution

The fourth proportional to 121,604.49, 167,807.14 and 67,892.88 is: 93,688.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,604.49 : 167,807.14 = 67,892.88 : x
  2. Step 2: Convert to fraction form
    121,604.49/167,807.14 = 67,892.88/x
  3. Step 3: Cross multiply
    121,604.49x = 167,807.14 × 67,892.88
  4. Step 4: Simplify right side
    121,604.49x = 11,392,910,860.61
  5. Step 5: Solve for x
    x = 11,392,910,860.61/121,604.49
  6. Step 6: Final answer
    x = 93,688.24

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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.