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Finding the Fourth Proportional to 89,845.49, 134,728.77 and 33,646.19

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Solution

The fourth proportional to 89,845.49, 134,728.77 and 33,646.19 is: 50,454.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,845.49 : 134,728.77 = 33,646.19 : x
  2. Step 2: Convert to fraction form
    89,845.49/134,728.77 = 33,646.19/x
  3. Step 3: Cross multiply
    89,845.49x = 134,728.77 × 33,646.19
  4. Step 4: Simplify right side
    89,845.49x = 4,533,109,793.89
  5. Step 5: Solve for x
    x = 4,533,109,793.89/89,845.49
  6. Step 6: Final answer
    x = 50,454.51

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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.