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Finding the Fourth Proportional to 352,692.90, 486,712.80 and 199,727.10

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Solution

The fourth proportional to 352,692.90, 486,712.80 and 199,727.10 is: 275,621.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,692.90 : 486,712.80 = 199,727.10 : x
  2. Step 2: Convert to fraction form
    352,692.90/486,712.80 = 199,727.10/x
  3. Step 3: Cross multiply
    352,692.90x = 486,712.80 × 199,727.10
  4. Step 4: Simplify right side
    352,692.90x = 97,209,736,076.88
  5. Step 5: Solve for x
    x = 97,209,736,076.88/352,692.90
  6. Step 6: Final answer
    x = 275,621.47

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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.