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Finding the Fourth Proportional to 423,651.44, 635,476.89 and 124,131.84

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Solution

The fourth proportional to 423,651.44, 635,476.89 and 124,131.84 is: 186,197.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,651.44 : 635,476.89 = 124,131.84 : x
  2. Step 2: Convert to fraction form
    423,651.44/635,476.89 = 124,131.84/x
  3. Step 3: Cross multiply
    423,651.44x = 635,476.89 × 124,131.84
  4. Step 4: Simplify right side
    423,651.44x = 78,882,917,290.19
  5. Step 5: Solve for x
    x = 78,882,917,290.19/423,651.44
  6. Step 6: Final answer
    x = 186,197.68

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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.