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Finding the Fourth Proportional to 173,654.80, 260,044.80 and 138,662.80

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Solution

The fourth proportional to 173,654.80, 260,044.80 and 138,662.80 is: 207,644.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    173,654.80 : 260,044.80 = 138,662.80 : x
  2. Step 2: Convert to fraction form
    173,654.80/260,044.80 = 138,662.80/x
  3. Step 3: Cross multiply
    173,654.80x = 260,044.80 × 138,662.80
  4. Step 4: Simplify right side
    173,654.80x = 36,058,540,093.44
  5. Step 5: Solve for x
    x = 36,058,540,093.44/173,654.80
  6. Step 6: Final answer
    x = 207,644.94

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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.