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Finding the Fourth Proportional to 229,279.20, 343,918.80 and 176,791.20

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Solution

The fourth proportional to 229,279.20, 343,918.80 and 176,791.20 is: 265,186.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,279.20 : 343,918.80 = 176,791.20 : x
  2. Step 2: Convert to fraction form
    229,279.20/343,918.80 = 176,791.20/x
  3. Step 3: Cross multiply
    229,279.20x = 343,918.80 × 176,791.20
  4. Step 4: Simplify right side
    229,279.20x = 60,801,817,354.56
  5. Step 5: Solve for x
    x = 60,801,817,354.56/229,279.20
  6. Step 6: Final answer
    x = 265,186.80

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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.