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Finding the Fourth Proportional to 262,936.48, 394,404.72 and 240,126.88

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Solution

The fourth proportional to 262,936.48, 394,404.72 and 240,126.88 is: 360,190.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,936.48 : 394,404.72 = 240,126.88 : x
  2. Step 2: Convert to fraction form
    262,936.48/394,404.72 = 240,126.88/x
  3. Step 3: Cross multiply
    262,936.48x = 394,404.72 × 240,126.88
  4. Step 4: Simplify right side
    262,936.48x = 94,707,174,870.87
  5. Step 5: Solve for x
    x = 94,707,174,870.87/262,936.48
  6. Step 6: Final answer
    x = 360,190.32

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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.