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Finding the Fourth Proportional to 117,087.88, 161,623.20 and 69,341.62

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Solution

The fourth proportional to 117,087.88, 161,623.20 and 69,341.62 is: 95,716.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,087.88 : 161,623.20 = 69,341.62 : x
  2. Step 2: Convert to fraction form
    117,087.88/161,623.20 = 69,341.62/x
  3. Step 3: Cross multiply
    117,087.88x = 161,623.20 × 69,341.62
  4. Step 4: Simplify right side
    117,087.88x = 11,207,214,517.58
  5. Step 5: Solve for x
    x = 11,207,214,517.58/117,087.88
  6. Step 6: Final answer
    x = 95,716.26

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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.