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Finding the Fourth Proportional to 359,236.90, 538,855.26 and 122,579.56

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Solution

The fourth proportional to 359,236.90, 538,855.26 and 122,579.56 is: 183,869.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,236.90 : 538,855.26 = 122,579.56 : x
  2. Step 2: Convert to fraction form
    359,236.90/538,855.26 = 122,579.56/x
  3. Step 3: Cross multiply
    359,236.90x = 538,855.26 × 122,579.56
  4. Step 4: Simplify right side
    359,236.90x = 66,052,640,674.49
  5. Step 5: Solve for x
    x = 66,052,640,674.49/359,236.90
  6. Step 6: Final answer
    x = 183,869.31

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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.