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Finding the Fourth Proportional to 121,393.35, 182,080.31 and 41,424.48

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Solution

The fourth proportional to 121,393.35, 182,080.31 and 41,424.48 is: 62,133.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,393.35 : 182,080.31 = 41,424.48 : x
  2. Step 2: Convert to fraction form
    121,393.35/182,080.31 = 41,424.48/x
  3. Step 3: Cross multiply
    121,393.35x = 182,080.31 × 41,424.48
  4. Step 4: Simplify right side
    121,393.35x = 7,542,581,952.87
  5. Step 5: Solve for x
    x = 7,542,581,952.87/121,393.35
  6. Step 6: Final answer
    x = 62,133.40

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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.