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Finding the Fourth Proportional to 252,060.62, 347,843 and 138,883.36

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Solution

The fourth proportional to 252,060.62, 347,843 and 138,883.36 is: 191,658.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,060.62 : 347,843 = 138,883.36 : x
  2. Step 2: Convert to fraction form
    252,060.62/347,843 = 138,883.36/x
  3. Step 3: Cross multiply
    252,060.62x = 347,843 × 138,883.36
  4. Step 4: Simplify right side
    252,060.62x = 48,309,604,592.48
  5. Step 5: Solve for x
    x = 48,309,604,592.48/252,060.62
  6. Step 6: Final answer
    x = 191,658.68

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.