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Finding the Fourth Proportional to 116,540.97, 160,802.46 and 68,133.57

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Solution

The fourth proportional to 116,540.97, 160,802.46 and 68,133.57 is: 94,010.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,540.97 : 160,802.46 = 68,133.57 : x
  2. Step 2: Convert to fraction form
    116,540.97/160,802.46 = 68,133.57/x
  3. Step 3: Cross multiply
    116,540.97x = 160,802.46 × 68,133.57
  4. Step 4: Simplify right side
    116,540.97x = 10,956,045,664.58
  5. Step 5: Solve for x
    x = 10,956,045,664.58/116,540.97
  6. Step 6: Final answer
    x = 94,010.25

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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.