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Finding the Fourth Proportional to 182,578.78, 251,949.72 and 101,990.26

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Solution

The fourth proportional to 182,578.78, 251,949.72 and 101,990.26 is: 140,741.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    182,578.78 : 251,949.72 = 101,990.26 : x
  2. Step 2: Convert to fraction form
    182,578.78/251,949.72 = 101,990.26/x
  3. Step 3: Cross multiply
    182,578.78x = 251,949.72 × 101,990.26
  4. Step 4: Simplify right side
    182,578.78x = 25,696,417,449.73
  5. Step 5: Solve for x
    x = 25,696,417,449.73/182,578.78
  6. Step 6: Final answer
    x = 140,741.53

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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.