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Finding the Fourth Proportional to 117,891.28, 162,692.04 and 64,177.84

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Solution

The fourth proportional to 117,891.28, 162,692.04 and 64,177.84 is: 88,566.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,891.28 : 162,692.04 = 64,177.84 : x
  2. Step 2: Convert to fraction form
    117,891.28/162,692.04 = 64,177.84/x
  3. Step 3: Cross multiply
    117,891.28x = 162,692.04 × 64,177.84
  4. Step 4: Simplify right side
    117,891.28x = 10,441,223,712.39
  5. Step 5: Solve for x
    x = 10,441,223,712.39/117,891.28
  6. Step 6: Final answer
    x = 88,566.55

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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.