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Finding the Fourth Proportional to 89,767.44, 134,734.50 and 45,425.52

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Solution

The fourth proportional to 89,767.44, 134,734.50 and 45,425.52 is: 68,180.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,767.44 : 134,734.50 = 45,425.52 : x
  2. Step 2: Convert to fraction form
    89,767.44/134,734.50 = 45,425.52/x
  3. Step 3: Cross multiply
    89,767.44x = 134,734.50 × 45,425.52
  4. Step 4: Simplify right side
    89,767.44x = 6,120,384,724.44
  5. Step 5: Solve for x
    x = 6,120,384,724.44/89,767.44
  6. Step 6: Final answer
    x = 68,180.45

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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.