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Finding the Fourth Proportional to 422,167.51, 633,179.94 and 118,491.98

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Solution

The fourth proportional to 422,167.51, 633,179.94 and 118,491.98 is: 177,717.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    422,167.51 : 633,179.94 = 118,491.98 : x
  2. Step 2: Convert to fraction form
    422,167.51/633,179.94 = 118,491.98/x
  3. Step 3: Cross multiply
    422,167.51x = 633,179.94 × 118,491.98
  4. Step 4: Simplify right side
    422,167.51x = 75,026,744,786.88
  5. Step 5: Solve for x
    x = 75,026,744,786.88/422,167.51
  6. Step 6: Final answer
    x = 177,717.95

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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.