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Finding the Fourth Proportional to 321,663.09, 443,886.49 and 185,692.44

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Solution

The fourth proportional to 321,663.09, 443,886.49 and 185,692.44 is: 256,250.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,663.09 : 443,886.49 = 185,692.44 : x
  2. Step 2: Convert to fraction form
    321,663.09/443,886.49 = 185,692.44/x
  3. Step 3: Cross multiply
    321,663.09x = 443,886.49 × 185,692.44
  4. Step 4: Simplify right side
    321,663.09x = 82,426,365,411.14
  5. Step 5: Solve for x
    x = 82,426,365,411.14/321,663.09
  6. Step 6: Final answer
    x = 256,250.62

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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.