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Finding the Fourth Proportional to 240,976.65, 361,540.52 and 145,018.56

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Solution

The fourth proportional to 240,976.65, 361,540.52 and 145,018.56 is: 217,573.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,976.65 : 361,540.52 = 145,018.56 : x
  2. Step 2: Convert to fraction form
    240,976.65/361,540.52 = 145,018.56/x
  3. Step 3: Cross multiply
    240,976.65x = 361,540.52 × 145,018.56
  4. Step 4: Simplify right side
    240,976.65x = 52,430,085,592.05
  5. Step 5: Solve for x
    x = 52,430,085,592.05/240,976.65
  6. Step 6: Final answer
    x = 217,573.30

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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.