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Finding the Fourth Proportional to 262,935.20, 394,402.80 and 94,455.20

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Solution

The fourth proportional to 262,935.20, 394,402.80 and 94,455.20 is: 141,682.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,935.20 : 394,402.80 = 94,455.20 : x
  2. Step 2: Convert to fraction form
    262,935.20/394,402.80 = 94,455.20/x
  3. Step 3: Cross multiply
    262,935.20x = 394,402.80 × 94,455.20
  4. Step 4: Simplify right side
    262,935.20x = 37,253,395,354.56
  5. Step 5: Solve for x
    x = 37,253,395,354.56/262,935.20
  6. Step 6: Final answer
    x = 141,682.80

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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.