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Finding the Fourth Proportional to 117,268.62, 161,830.82 and 63,553.62

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Solution

The fourth proportional to 117,268.62, 161,830.82 and 63,553.62 is: 87,704.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,268.62 : 161,830.82 = 63,553.62 : x
  2. Step 2: Convert to fraction form
    117,268.62/161,830.82 = 63,553.62/x
  3. Step 3: Cross multiply
    117,268.62x = 161,830.82 × 63,553.62
  4. Step 4: Simplify right side
    117,268.62x = 10,284,934,120.80
  5. Step 5: Solve for x
    x = 10,284,934,120.80/117,268.62
  6. Step 6: Final answer
    x = 87,704.06

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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.