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Finding the Fourth Proportional to 178,644.80, 267,967.20 and 73,539.20

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Solution

The fourth proportional to 178,644.80, 267,967.20 and 73,539.20 is: 110,308.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,644.80 : 267,967.20 = 73,539.20 : x
  2. Step 2: Convert to fraction form
    178,644.80/267,967.20 = 73,539.20/x
  3. Step 3: Cross multiply
    178,644.80x = 267,967.20 × 73,539.20
  4. Step 4: Simplify right side
    178,644.80x = 19,706,093,514.24
  5. Step 5: Solve for x
    x = 19,706,093,514.24/178,644.80
  6. Step 6: Final answer
    x = 110,308.80

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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.