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Finding the Fourth Proportional to 117,268.48, 161,830.46 and 63,553.49

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Solution

The fourth proportional to 117,268.48, 161,830.46 and 63,553.49 is: 87,703.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,268.48 : 161,830.46 = 63,553.49 : x
  2. Step 2: Convert to fraction form
    117,268.48/161,830.46 = 63,553.49/x
  3. Step 3: Cross multiply
    117,268.48x = 161,830.46 × 63,553.49
  4. Step 4: Simplify right side
    117,268.48x = 10,284,889,665.26
  5. Step 5: Solve for x
    x = 10,284,889,665.26/117,268.48
  6. Step 6: Final answer
    x = 87,703.78

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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.