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Finding the Fourth Proportional to 117,067.31, 161,553.29 and 63,352.31

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Solution

The fourth proportional to 117,067.31, 161,553.29 and 63,352.31 is: 87,426.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,067.31 : 161,553.29 = 63,352.31 : x
  2. Step 2: Convert to fraction form
    117,067.31/161,553.29 = 63,352.31/x
  3. Step 3: Cross multiply
    117,067.31x = 161,553.29 × 63,352.31
  4. Step 4: Simplify right side
    117,067.31x = 10,234,773,460.21
  5. Step 5: Solve for x
    x = 10,234,773,460.21/117,067.31
  6. Step 6: Final answer
    x = 87,426.40

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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.