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Finding the Fourth Proportional to 269,763.90, 404,879.10 and 103,668.54

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Solution

The fourth proportional to 269,763.90, 404,879.10 and 103,668.54 is: 155,592.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,763.90 : 404,879.10 = 103,668.54 : x
  2. Step 2: Convert to fraction form
    269,763.90/404,879.10 = 103,668.54/x
  3. Step 3: Cross multiply
    269,763.90x = 404,879.10 × 103,668.54
  4. Step 4: Simplify right side
    269,763.90x = 41,973,225,173.51
  5. Step 5: Solve for x
    x = 41,973,225,173.51/269,763.90
  6. Step 6: Final answer
    x = 155,592.45

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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.