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Finding the Fourth Proportional to 117,471.60, 162,110.97 and 63,756.62

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Solution

The fourth proportional to 117,471.60, 162,110.97 and 63,756.62 is: 87,984.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,471.60 : 162,110.97 = 63,756.62 : x
  2. Step 2: Convert to fraction form
    117,471.60/162,110.97 = 63,756.62/x
  3. Step 3: Cross multiply
    117,471.60x = 162,110.97 × 63,756.62
  4. Step 4: Simplify right side
    117,471.60x = 10,335,647,512.12
  5. Step 5: Solve for x
    x = 10,335,647,512.12/117,471.60
  6. Step 6: Final answer
    x = 87,984.22

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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.