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Finding the Fourth Proportional to 89,615.88, 134,329.80 and 33,433.32

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Solution

The fourth proportional to 89,615.88, 134,329.80 and 33,433.32 is: 50,114.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,615.88 : 134,329.80 = 33,433.32 : x
  2. Step 2: Convert to fraction form
    89,615.88/134,329.80 = 33,433.32/x
  3. Step 3: Cross multiply
    89,615.88x = 134,329.80 × 33,433.32
  4. Step 4: Simplify right side
    89,615.88x = 4,491,091,188.94
  5. Step 5: Solve for x
    x = 4,491,091,188.94/89,615.88
  6. Step 6: Final answer
    x = 50,114.90

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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.