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Finding the Fourth Proportional to 240,859.78, 361,308.38 and 72,366.96

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Solution

The fourth proportional to 240,859.78, 361,308.38 and 72,366.96 is: 108,556.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,859.78 : 361,308.38 = 72,366.96 : x
  2. Step 2: Convert to fraction form
    240,859.78/361,308.38 = 72,366.96/x
  3. Step 3: Cross multiply
    240,859.78x = 361,308.38 × 72,366.96
  4. Step 4: Simplify right side
    240,859.78x = 26,146,789,083.12
  5. Step 5: Solve for x
    x = 26,146,789,083.12/240,859.78
  6. Step 6: Final answer
    x = 108,556.06

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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.