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Finding the Fourth Proportional to 359,136.96, 538,705.44 and 122,481.69

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Solution

The fourth proportional to 359,136.96, 538,705.44 and 122,481.69 is: 183,722.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,136.96 : 538,705.44 = 122,481.69 : x
  2. Step 2: Convert to fraction form
    359,136.96/538,705.44 = 122,481.69/x
  3. Step 3: Cross multiply
    359,136.96x = 538,705.44 × 122,481.69
  4. Step 4: Simplify right side
    359,136.96x = 65,981,552,703.39
  5. Step 5: Solve for x
    x = 65,981,552,703.39/359,136.96
  6. Step 6: Final answer
    x = 183,722.54

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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.