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Finding the Fourth Proportional to 180,438.03, 270,617.56 and 60,511.86

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Solution

The fourth proportional to 180,438.03, 270,617.56 and 60,511.86 is: 90,754.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,438.03 : 270,617.56 = 60,511.86 : x
  2. Step 2: Convert to fraction form
    180,438.03/270,617.56 = 60,511.86/x
  3. Step 3: Cross multiply
    180,438.03x = 270,617.56 × 60,511.86
  4. Step 4: Simplify right side
    180,438.03x = 16,375,571,752.98
  5. Step 5: Solve for x
    x = 16,375,571,752.98/180,438.03
  6. Step 6: Final answer
    x = 90,754.55

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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.