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Finding the Fourth Proportional to 330,692.28, 456,353.10 and 179,789.28

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Solution

The fourth proportional to 330,692.28, 456,353.10 and 179,789.28 is: 248,107.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,692.28 : 456,353.10 = 179,789.28 : x
  2. Step 2: Convert to fraction form
    330,692.28/456,353.10 = 179,789.28/x
  3. Step 3: Cross multiply
    330,692.28x = 456,353.10 × 179,789.28
  4. Step 4: Simplify right side
    330,692.28x = 82,047,395,274.77
  5. Step 5: Solve for x
    x = 82,047,395,274.77/330,692.28
  6. Step 6: Final answer
    x = 248,107.99

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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.