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Finding the Fourth Proportional to 117,676.64, 162,393.96 and 63,961.50

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Solution

The fourth proportional to 117,676.64, 162,393.96 and 63,961.50 is: 88,266.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,676.64 : 162,393.96 = 63,961.50 : x
  2. Step 2: Convert to fraction form
    117,676.64/162,393.96 = 63,961.50/x
  3. Step 3: Cross multiply
    117,676.64x = 162,393.96 × 63,961.50
  4. Step 4: Simplify right side
    117,676.64x = 10,386,962,121.37
  5. Step 5: Solve for x
    x = 10,386,962,121.37/117,676.64
  6. Step 6: Final answer
    x = 88,266.99

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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.