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Finding the Fourth Proportional to 117,094.77, 161,584.68 and 68,689.97

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Solution

The fourth proportional to 117,094.77, 161,584.68 and 68,689.97 is: 94,788.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,094.77 : 161,584.68 = 68,689.97 : x
  2. Step 2: Convert to fraction form
    117,094.77/161,584.68 = 68,689.97/x
  3. Step 3: Cross multiply
    117,094.77x = 161,584.68 × 68,689.97
  4. Step 4: Simplify right side
    117,094.77x = 11,099,246,013.74
  5. Step 5: Solve for x
    x = 11,099,246,013.74/117,094.77
  6. Step 6: Final answer
    x = 94,788.57

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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.