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Finding the Fourth Proportional to 308,082.80, 462,124.20 and 266,092.40

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Solution

The fourth proportional to 308,082.80, 462,124.20 and 266,092.40 is: 399,138.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,082.80 : 462,124.20 = 266,092.40 : x
  2. Step 2: Convert to fraction form
    308,082.80/462,124.20 = 266,092.40/x
  3. Step 3: Cross multiply
    308,082.80x = 462,124.20 × 266,092.40
  4. Step 4: Simplify right side
    308,082.80x = 122,967,737,476.08
  5. Step 5: Solve for x
    x = 122,967,737,476.08/308,082.80
  6. Step 6: Final answer
    x = 399,138.60

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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.