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Finding the Fourth Proportional to 126,843.30, 190,243.62 and 42,593.94

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Solution

The fourth proportional to 126,843.30, 190,243.62 and 42,593.94 is: 63,883.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,843.30 : 190,243.62 = 42,593.94 : x
  2. Step 2: Convert to fraction form
    126,843.30/190,243.62 = 42,593.94/x
  3. Step 3: Cross multiply
    126,843.30x = 190,243.62 × 42,593.94
  4. Step 4: Simplify right side
    126,843.30x = 8,103,225,335.66
  5. Step 5: Solve for x
    x = 8,103,225,335.66/126,843.30
  6. Step 6: Final answer
    x = 63,883.75

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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.