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Finding the Fourth Proportional to 117,896.80, 162,692.28 and 64,180.44

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Solution

The fourth proportional to 117,896.80, 162,692.28 and 64,180.44 is: 88,566.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,896.80 : 162,692.28 = 64,180.44 : x
  2. Step 2: Convert to fraction form
    117,896.80/162,692.28 = 64,180.44/x
  3. Step 3: Cross multiply
    117,896.80x = 162,692.28 × 64,180.44
  4. Step 4: Simplify right side
    117,896.80x = 10,441,662,115.00
  5. Step 5: Solve for x
    x = 10,441,662,115.00/117,896.80
  6. Step 6: Final answer
    x = 88,566.12

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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.