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Finding the Fourth Proportional to 410,548.20, 615,694.30 and 161,306.60

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Solution

The fourth proportional to 410,548.20, 615,694.30 and 161,306.60 is: 241,909.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    410,548.20 : 615,694.30 = 161,306.60 : x
  2. Step 2: Convert to fraction form
    410,548.20/615,694.30 = 161,306.60/x
  3. Step 3: Cross multiply
    410,548.20x = 615,694.30 × 161,306.60
  4. Step 4: Simplify right side
    410,548.20x = 99,315,554,172.38
  5. Step 5: Solve for x
    x = 99,315,554,172.38/410,548.20
  6. Step 6: Final answer
    x = 241,909.61

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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.