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Finding the Fourth Proportional to 117,284.36, 161,851.77 and 63,568.80

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Solution

The fourth proportional to 117,284.36, 161,851.77 and 63,568.80 is: 87,724.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,284.36 : 161,851.77 = 63,568.80 : x
  2. Step 2: Convert to fraction form
    117,284.36/161,851.77 = 63,568.80/x
  3. Step 3: Cross multiply
    117,284.36x = 161,851.77 × 63,568.80
  4. Step 4: Simplify right side
    117,284.36x = 10,288,722,796.78
  5. Step 5: Solve for x
    x = 10,288,722,796.78/117,284.36
  6. Step 6: Final answer
    x = 87,724.60

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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.