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Finding the Fourth Proportional to 179,551.98, 247,770.60 and 98,980.20

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Solution

The fourth proportional to 179,551.98, 247,770.60 and 98,980.20 is: 136,586.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,551.98 : 247,770.60 = 98,980.20 : x
  2. Step 2: Convert to fraction form
    179,551.98/247,770.60 = 98,980.20/x
  3. Step 3: Cross multiply
    179,551.98x = 247,770.60 × 98,980.20
  4. Step 4: Simplify right side
    179,551.98x = 24,524,383,542.12
  5. Step 5: Solve for x
    x = 24,524,383,542.12/179,551.98
  6. Step 6: Final answer
    x = 136,586.54

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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.