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Finding the Fourth Proportional to 343,886.80, 515,392.80 and 166,010.80

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Solution

The fourth proportional to 343,886.80, 515,392.80 and 166,010.80 is: 248,805.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,886.80 : 515,392.80 = 166,010.80 : x
  2. Step 2: Convert to fraction form
    343,886.80/515,392.80 = 166,010.80/x
  3. Step 3: Cross multiply
    343,886.80x = 515,392.80 × 166,010.80
  4. Step 4: Simplify right side
    343,886.80x = 85,560,771,042.24
  5. Step 5: Solve for x
    x = 85,560,771,042.24/343,886.80
  6. Step 6: Final answer
    x = 248,805.05

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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.