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Finding the Fourth Proportional to 89,831.77, 134,770.74 and 33,672.65

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Solution

The fourth proportional to 89,831.77, 134,770.74 and 33,672.65 is: 50,517.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,831.77 : 134,770.74 = 33,672.65 : x
  2. Step 2: Convert to fraction form
    89,831.77/134,770.74 = 33,672.65/x
  3. Step 3: Cross multiply
    89,831.77x = 134,770.74 × 33,672.65
  4. Step 4: Simplify right side
    89,831.77x = 4,538,087,158.13
  5. Step 5: Solve for x
    x = 4,538,087,158.13/89,831.77
  6. Step 6: Final answer
    x = 50,517.62

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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.