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Finding the Fourth Proportional to 226,494.80, 339,742.20 and 102,078.80

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Solution

The fourth proportional to 226,494.80, 339,742.20 and 102,078.80 is: 153,118.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,494.80 : 339,742.20 = 102,078.80 : x
  2. Step 2: Convert to fraction form
    226,494.80/339,742.20 = 102,078.80/x
  3. Step 3: Cross multiply
    226,494.80x = 339,742.20 × 102,078.80
  4. Step 4: Simplify right side
    226,494.80x = 34,680,476,085.36
  5. Step 5: Solve for x
    x = 34,680,476,085.36/226,494.80
  6. Step 6: Final answer
    x = 153,118.20

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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.