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Finding the Fourth Proportional to 270,380.52, 373,139.28 and 155,676.60

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Solution

The fourth proportional to 270,380.52, 373,139.28 and 155,676.60 is: 214,841.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,380.52 : 373,139.28 = 155,676.60 : x
  2. Step 2: Convert to fraction form
    270,380.52/373,139.28 = 155,676.60/x
  3. Step 3: Cross multiply
    270,380.52x = 373,139.28 × 155,676.60
  4. Step 4: Simplify right side
    270,380.52x = 58,089,054,436.85
  5. Step 5: Solve for x
    x = 58,089,054,436.85/270,380.52
  6. Step 6: Final answer
    x = 214,841.86

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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.