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Finding the Fourth Proportional to 156,425.31, 234,654.44 and 51,252.48

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Solution

The fourth proportional to 156,425.31, 234,654.44 and 51,252.48 is: 76,884.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,425.31 : 234,654.44 = 51,252.48 : x
  2. Step 2: Convert to fraction form
    156,425.31/234,654.44 = 51,252.48/x
  3. Step 3: Cross multiply
    156,425.31x = 234,654.44 × 51,252.48
  4. Step 4: Simplify right side
    156,425.31x = 12,026,621,736.75
  5. Step 5: Solve for x
    x = 12,026,621,736.75/156,425.31
  6. Step 6: Final answer
    x = 76,884.12

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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.