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Finding the Fourth Proportional to 339,692.19, 468,781.05 and 186,736.83

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Solution

The fourth proportional to 339,692.19, 468,781.05 and 186,736.83 is: 257,700.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,692.19 : 468,781.05 = 186,736.83 : x
  2. Step 2: Convert to fraction form
    339,692.19/468,781.05 = 186,736.83/x
  3. Step 3: Cross multiply
    339,692.19x = 468,781.05 × 186,736.83
  4. Step 4: Simplify right side
    339,692.19x = 87,538,687,241.07
  5. Step 5: Solve for x
    x = 87,538,687,241.07/339,692.19
  6. Step 6: Final answer
    x = 257,700.03

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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.