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Finding the Fourth Proportional to 547,692.45, 821,564.05 and 168,630.17

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Solution

The fourth proportional to 547,692.45, 821,564.05 and 168,630.17 is: 252,953.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    547,692.45 : 821,564.05 = 168,630.17 : x
  2. Step 2: Convert to fraction form
    547,692.45/821,564.05 = 168,630.17/x
  3. Step 3: Cross multiply
    547,692.45x = 821,564.05 × 168,630.17
  4. Step 4: Simplify right side
    547,692.45x = 138,540,481,520.36
  5. Step 5: Solve for x
    x = 138,540,481,520.36/547,692.45
  6. Step 6: Final answer
    x = 252,953.06

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.