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Finding the Fourth Proportional to 226,570.80, 339,904.80 and 68,815.20

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Solution

The fourth proportional to 226,570.80, 339,904.80 and 68,815.20 is: 103,237.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,570.80 : 339,904.80 = 68,815.20 : x
  2. Step 2: Convert to fraction form
    226,570.80/339,904.80 = 68,815.20/x
  3. Step 3: Cross multiply
    226,570.80x = 339,904.80 × 68,815.20
  4. Step 4: Simplify right side
    226,570.80x = 23,390,616,792.96
  5. Step 5: Solve for x
    x = 23,390,616,792.96/226,570.80
  6. Step 6: Final answer
    x = 103,237.56

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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.