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Finding the Fourth Proportional to 240,775.48, 332,180.94 and 155,939.32

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Solution

The fourth proportional to 240,775.48, 332,180.94 and 155,939.32 is: 215,138.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,775.48 : 332,180.94 = 155,939.32 : x
  2. Step 2: Convert to fraction form
    240,775.48/332,180.94 = 155,939.32/x
  3. Step 3: Cross multiply
    240,775.48x = 332,180.94 × 155,939.32
  4. Step 4: Simplify right side
    240,775.48x = 51,800,069,900.56
  5. Step 5: Solve for x
    x = 51,800,069,900.56/240,775.48
  6. Step 6: Final answer
    x = 215,138.48

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.