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Finding the Fourth Proportional to 127,692.60, 176,188.81 and 73,974.44

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Solution

The fourth proportional to 127,692.60, 176,188.81 and 73,974.44 is: 102,069.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,692.60 : 176,188.81 = 73,974.44 : x
  2. Step 2: Convert to fraction form
    127,692.60/176,188.81 = 73,974.44/x
  3. Step 3: Cross multiply
    127,692.60x = 176,188.81 × 73,974.44
  4. Step 4: Simplify right side
    127,692.60x = 13,033,468,554.02
  5. Step 5: Solve for x
    x = 13,033,468,554.02/127,692.60
  6. Step 6: Final answer
    x = 102,069.10

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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.