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Finding the Fourth Proportional to 89,968.44, 124,156.44 and 49,682.28

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Solution

The fourth proportional to 89,968.44, 124,156.44 and 49,682.28 is: 68,561.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,968.44 : 124,156.44 = 49,682.28 : x
  2. Step 2: Convert to fraction form
    89,968.44/124,156.44 = 49,682.28/x
  3. Step 3: Cross multiply
    89,968.44x = 124,156.44 × 49,682.28
  4. Step 4: Simplify right side
    89,968.44x = 6,168,375,015.88
  5. Step 5: Solve for x
    x = 6,168,375,015.88/89,968.44
  6. Step 6: Final answer
    x = 68,561.54

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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.