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Finding the Fourth Proportional to 127,691.60, 176,187.44 and 73,973.44

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Solution

The fourth proportional to 127,691.60, 176,187.44 and 73,973.44 is: 102,067.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,691.60 : 176,187.44 = 73,973.44 : x
  2. Step 2: Convert to fraction form
    127,691.60/176,187.44 = 73,973.44/x
  3. Step 3: Cross multiply
    127,691.60x = 176,187.44 × 73,973.44
  4. Step 4: Simplify right side
    127,691.60x = 13,033,189,770.79
  5. Step 5: Solve for x
    x = 13,033,189,770.79/127,691.60
  6. Step 6: Final answer
    x = 102,067.71

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1.5x scale

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.