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Finding the Fourth Proportional to 117,697.32, 162,422.28 and 63,982.17

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Solution

The fourth proportional to 117,697.32, 162,422.28 and 63,982.17 is: 88,295.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,697.32 : 162,422.28 = 63,982.17 : x
  2. Step 2: Convert to fraction form
    117,697.32/162,422.28 = 63,982.17/x
  3. Step 3: Cross multiply
    117,697.32x = 162,422.28 × 63,982.17
  4. Step 4: Simplify right side
    117,697.32x = 10,392,129,930.75
  5. Step 5: Solve for x
    x = 10,392,129,930.75/117,697.32
  6. Step 6: Final answer
    x = 88,295.38

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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.