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Finding the Fourth Proportional to 117,116.26, 161,620.26 and 63,401.26

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Solution

The fourth proportional to 117,116.26, 161,620.26 and 63,401.26 is: 87,493.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,116.26 : 161,620.26 = 63,401.26 : x
  2. Step 2: Convert to fraction form
    117,116.26/161,620.26 = 63,401.26/x
  3. Step 3: Cross multiply
    117,116.26x = 161,620.26 × 63,401.26
  4. Step 4: Simplify right side
    117,116.26x = 10,246,928,125.53
  5. Step 5: Solve for x
    x = 10,246,928,125.53/117,116.26
  6. Step 6: Final answer
    x = 87,493.64

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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.