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Finding the Fourth Proportional to 269,676.90, 404,695.94 and 111,905.51

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Solution

The fourth proportional to 269,676.90, 404,695.94 and 111,905.51 is: 167,933.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,676.90 : 404,695.94 = 111,905.51 : x
  2. Step 2: Convert to fraction form
    269,676.90/404,695.94 = 111,905.51/x
  3. Step 3: Cross multiply
    269,676.90x = 404,695.94 × 111,905.51
  4. Step 4: Simplify right side
    269,676.90x = 45,287,704,409.01
  5. Step 5: Solve for x
    x = 45,287,704,409.01/269,676.90
  6. Step 6: Final answer
    x = 167,933.20

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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.