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Finding the Fourth Proportional to 116,446.56, 160,659.36 and 68,716.32

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Solution

The fourth proportional to 116,446.56, 160,659.36 and 68,716.32 is: 94,806.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,446.56 : 160,659.36 = 68,716.32 : x
  2. Step 2: Convert to fraction form
    116,446.56/160,659.36 = 68,716.32/x
  3. Step 3: Cross multiply
    116,446.56x = 160,659.36 × 68,716.32
  4. Step 4: Simplify right side
    116,446.56x = 11,039,919,992.76
  5. Step 5: Solve for x
    x = 11,039,919,992.76/116,446.56
  6. Step 6: Final answer
    x = 94,806.75

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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.