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Finding the Fourth Proportional to 226,492.80, 339,739.20 and 102,076.80

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Solution

The fourth proportional to 226,492.80, 339,739.20 and 102,076.80 is: 153,115.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,492.80 : 339,739.20 = 102,076.80 : x
  2. Step 2: Convert to fraction form
    226,492.80/339,739.20 = 102,076.80/x
  3. Step 3: Cross multiply
    226,492.80x = 339,739.20 × 102,076.80
  4. Step 4: Simplify right side
    226,492.80x = 34,679,490,370.56
  5. Step 5: Solve for x
    x = 34,679,490,370.56/226,492.80
  6. Step 6: Final answer
    x = 153,115.20

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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.