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Finding the Fourth Proportional to 178,809.20, 267,922.20 and 153,731.60

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Solution

The fourth proportional to 178,809.20, 267,922.20 and 153,731.60 is: 230,346.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,809.20 : 267,922.20 = 153,731.60 : x
  2. Step 2: Convert to fraction form
    178,809.20/267,922.20 = 153,731.60/x
  3. Step 3: Cross multiply
    178,809.20x = 267,922.20 × 153,731.60
  4. Step 4: Simplify right side
    178,809.20x = 41,188,108,481.52
  5. Step 5: Solve for x
    x = 41,188,108,481.52/178,809.20
  6. Step 6: Final answer
    x = 230,346.70

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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.