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Finding the Fourth Proportional to 272,494.88, 408,770.20 and 104,156.90

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Solution

The fourth proportional to 272,494.88, 408,770.20 and 104,156.90 is: 156,246.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,494.88 : 408,770.20 = 104,156.90 : x
  2. Step 2: Convert to fraction form
    272,494.88/408,770.20 = 104,156.90/x
  3. Step 3: Cross multiply
    272,494.88x = 408,770.20 × 104,156.90
  4. Step 4: Simplify right side
    272,494.88x = 42,576,236,844.38
  5. Step 5: Solve for x
    x = 42,576,236,844.38/272,494.88
  6. Step 6: Final answer
    x = 156,246.01

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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.