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Finding the Fourth Proportional to 269,691.66, 404,717.91 and 111,920.10

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Solution

The fourth proportional to 269,691.66, 404,717.91 and 111,920.10 is: 167,955.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,691.66 : 404,717.91 = 111,920.10 : x
  2. Step 2: Convert to fraction form
    269,691.66/404,717.91 = 111,920.10/x
  3. Step 3: Cross multiply
    269,691.66x = 404,717.91 × 111,920.10
  4. Step 4: Simplify right side
    269,691.66x = 45,296,068,958.99
  5. Step 5: Solve for x
    x = 45,296,068,958.99/269,691.66
  6. Step 6: Final answer
    x = 167,955.02

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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.