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Finding the Fourth Proportional to 251,929.26, 347,646.60 and 138,751.98

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Solution

The fourth proportional to 251,929.26, 347,646.60 and 138,751.98 is: 191,469.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,929.26 : 347,646.60 = 138,751.98 : x
  2. Step 2: Convert to fraction form
    251,929.26/347,646.60 = 138,751.98/x
  3. Step 3: Cross multiply
    251,929.26x = 347,646.60 × 138,751.98
  4. Step 4: Simplify right side
    251,929.26x = 48,236,654,090.27
  5. Step 5: Solve for x
    x = 48,236,654,090.27/251,929.26
  6. Step 6: Final answer
    x = 191,469.04

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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.