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Finding the Fourth Proportional to 374,084.28, 516,236.28 and 204,318.78

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Solution

The fourth proportional to 374,084.28, 516,236.28 and 204,318.78 is: 281,959.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,084.28 : 516,236.28 = 204,318.78 : x
  2. Step 2: Convert to fraction form
    374,084.28/516,236.28 = 204,318.78/x
  3. Step 3: Cross multiply
    374,084.28x = 516,236.28 × 204,318.78
  4. Step 4: Simplify right side
    374,084.28x = 105,476,766,921.34
  5. Step 5: Solve for x
    x = 105,476,766,921.34/374,084.28
  6. Step 6: Final answer
    x = 281,959.90

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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.