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Finding the Fourth Proportional to 269,554.48, 404,478.12 and 111,891.28

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Solution

The fourth proportional to 269,554.48, 404,478.12 and 111,891.28 is: 167,897.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,554.48 : 404,478.12 = 111,891.28 : x
  2. Step 2: Convert to fraction form
    269,554.48/404,478.12 = 111,891.28/x
  3. Step 3: Cross multiply
    269,554.48x = 404,478.12 × 111,891.28
  4. Step 4: Simplify right side
    269,554.48x = 45,257,574,578.79
  5. Step 5: Solve for x
    x = 45,257,574,578.79/269,554.48
  6. Step 6: Final answer
    x = 167,897.69

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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.