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Finding the Fourth Proportional to 116,899.71, 161,375.31 and 68,494.92

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Solution

The fourth proportional to 116,899.71, 161,375.31 and 68,494.92 is: 94,554.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    116,899.71 : 161,375.31 = 68,494.92 : x
  2. Step 2: Convert to fraction form
    116,899.71/161,375.31 = 68,494.92/x
  3. Step 3: Cross multiply
    116,899.71x = 161,375.31 × 68,494.92
  4. Step 4: Simplify right side
    116,899.71x = 11,053,388,948.43
  5. Step 5: Solve for x
    x = 11,053,388,948.43/116,899.71
  6. Step 6: Final answer
    x = 94,554.46

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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.