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Finding the Fourth Proportional to 308,766.66, 426,359.53 and 194,082.22

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Solution

The fourth proportional to 308,766.66, 426,359.53 and 194,082.22 is: 267,997.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,766.66 : 426,359.53 = 194,082.22 : x
  2. Step 2: Convert to fraction form
    308,766.66/426,359.53 = 194,082.22/x
  3. Step 3: Cross multiply
    308,766.66x = 426,359.53 × 194,082.22
  4. Step 4: Simplify right side
    308,766.66x = 82,748,804,100.56
  5. Step 5: Solve for x
    x = 82,748,804,100.56/308,766.66
  6. Step 6: Final answer
    x = 267,997.86

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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.