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Finding the Fourth Proportional to 229,436.30, 343,818.30 and 205,743.80

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Solution

The fourth proportional to 229,436.30, 343,818.30 and 205,743.80 is: 308,314.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,436.30 : 343,818.30 = 205,743.80 : x
  2. Step 2: Convert to fraction form
    229,436.30/343,818.30 = 205,743.80/x
  3. Step 3: Cross multiply
    229,436.30x = 343,818.30 × 205,743.80
  4. Step 4: Simplify right side
    229,436.30x = 70,738,483,551.54
  5. Step 5: Solve for x
    x = 70,738,483,551.54/229,436.30
  6. Step 6: Final answer
    x = 308,314.26

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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.