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Finding the Fourth Proportional to 272,027.10, 408,040.65 and 216,039.90

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Solution

The fourth proportional to 272,027.10, 408,040.65 and 216,039.90 is: 324,059.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,027.10 : 408,040.65 = 216,039.90 : x
  2. Step 2: Convert to fraction form
    272,027.10/408,040.65 = 216,039.90/x
  3. Step 3: Cross multiply
    272,027.10x = 408,040.65 × 216,039.90
  4. Step 4: Simplify right side
    272,027.10x = 88,153,061,221.94
  5. Step 5: Solve for x
    x = 88,153,061,221.94/272,027.10
  6. Step 6: Final answer
    x = 324,059.85

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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.