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Finding the Fourth Proportional to 89,315.94, 133,879.56 and 32,351.88

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Solution

The fourth proportional to 89,315.94, 133,879.56 and 32,351.88 is: 48,493.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,315.94 : 133,879.56 = 32,351.88 : x
  2. Step 2: Convert to fraction form
    89,315.94/133,879.56 = 32,351.88/x
  3. Step 3: Cross multiply
    89,315.94x = 133,879.56 × 32,351.88
  4. Step 4: Simplify right side
    89,315.94x = 4,331,255,459.57
  5. Step 5: Solve for x
    x = 4,331,255,459.57/89,315.94
  6. Step 6: Final answer
    x = 48,493.64

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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.