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Finding the Fourth Proportional to 269,312.69, 403,844.87 and 79,705.25

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Solution

The fourth proportional to 269,312.69, 403,844.87 and 79,705.25 is: 119,521.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,312.69 : 403,844.87 = 79,705.25 : x
  2. Step 2: Convert to fraction form
    269,312.69/403,844.87 = 79,705.25/x
  3. Step 3: Cross multiply
    269,312.69x = 403,844.87 × 79,705.25
  4. Step 4: Simplify right side
    269,312.69x = 32,188,556,324.57
  5. Step 5: Solve for x
    x = 32,188,556,324.57/269,312.69
  6. Step 6: Final answer
    x = 119,521.13

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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.