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Finding the Fourth Proportional to 127,493.39, 175,977.97 and 85,051.82

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Solution

The fourth proportional to 127,493.39, 175,977.97 and 85,051.82 is: 117,396.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,493.39 : 175,977.97 = 85,051.82 : x
  2. Step 2: Convert to fraction form
    127,493.39/175,977.97 = 85,051.82/x
  3. Step 3: Cross multiply
    127,493.39x = 175,977.97 × 85,051.82
  4. Step 4: Simplify right side
    127,493.39x = 14,967,246,855.72
  5. Step 5: Solve for x
    x = 14,967,246,855.72/127,493.39
  6. Step 6: Final answer
    x = 117,396.26

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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.