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Finding the Fourth Proportional to 423,857.41, 635,786.42 and 108,314.62

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Solution

The fourth proportional to 423,857.41, 635,786.42 and 108,314.62 is: 162,472.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,857.41 : 635,786.42 = 108,314.62 : x
  2. Step 2: Convert to fraction form
    423,857.41/635,786.42 = 108,314.62/x
  3. Step 3: Cross multiply
    423,857.41x = 635,786.42 × 108,314.62
  4. Step 4: Simplify right side
    423,857.41x = 68,864,962,352.42
  5. Step 5: Solve for x
    x = 68,864,962,352.42/423,857.41
  6. Step 6: Final answer
    x = 162,472.00

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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.