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Finding the Fourth Proportional to 179,805.20, 269,743.80 and 53,445.20

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Solution

The fourth proportional to 179,805.20, 269,743.80 and 53,445.20 is: 80,178.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    179,805.20 : 269,743.80 = 53,445.20 : x
  2. Step 2: Convert to fraction form
    179,805.20/269,743.80 = 53,445.20/x
  3. Step 3: Cross multiply
    179,805.20x = 269,743.80 × 53,445.20
  4. Step 4: Simplify right side
    179,805.20x = 14,416,511,339.76
  5. Step 5: Solve for x
    x = 14,416,511,339.76/179,805.20
  6. Step 6: Final answer
    x = 80,178.50

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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.