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Finding the Fourth Proportional to 127,194.88, 175,493.37 and 79,496.68

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Solution

The fourth proportional to 127,194.88, 175,493.37 and 79,496.68 is: 109,683.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,194.88 : 175,493.37 = 79,496.68 : x
  2. Step 2: Convert to fraction form
    127,194.88/175,493.37 = 79,496.68/x
  3. Step 3: Cross multiply
    127,194.88x = 175,493.37 × 79,496.68
  4. Step 4: Simplify right side
    127,194.88x = 13,951,140,277.01
  5. Step 5: Solve for x
    x = 13,951,140,277.01/127,194.88
  6. Step 6: Final answer
    x = 109,683.19

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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.