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Finding the Fourth Proportional to 229,269.60, 343,936.80 and 71,481.60

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Solution

The fourth proportional to 229,269.60, 343,936.80 and 71,481.60 is: 107,232.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,269.60 : 343,936.80 = 71,481.60 : x
  2. Step 2: Convert to fraction form
    229,269.60/343,936.80 = 71,481.60/x
  3. Step 3: Cross multiply
    229,269.60x = 343,936.80 × 71,481.60
  4. Step 4: Simplify right side
    229,269.60x = 24,585,152,762.88
  5. Step 5: Solve for x
    x = 24,585,152,762.88/229,269.60
  6. Step 6: Final answer
    x = 107,232.50

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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.