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Finding the Fourth Proportional to 89,730.68, 134,596.24 and 84,250.24

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Solution

The fourth proportional to 89,730.68, 134,596.24 and 84,250.24 is: 126,375.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,730.68 : 134,596.24 = 84,250.24 : x
  2. Step 2: Convert to fraction form
    89,730.68/134,596.24 = 84,250.24/x
  3. Step 3: Cross multiply
    89,730.68x = 134,596.24 × 84,250.24
  4. Step 4: Simplify right side
    89,730.68x = 11,339,765,523.10
  5. Step 5: Solve for x
    x = 11,339,765,523.10/89,730.68
  6. Step 6: Final answer
    x = 126,375.57

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1.5x scale

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.