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Finding the Fourth Proportional to 89,052.80, 133,628.70 and 36,458.60

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Solution

The fourth proportional to 89,052.80, 133,628.70 and 36,458.60 is: 54,708.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,052.80 : 133,628.70 = 36,458.60 : x
  2. Step 2: Convert to fraction form
    89,052.80/133,628.70 = 36,458.60/x
  3. Step 3: Cross multiply
    89,052.80x = 133,628.70 × 36,458.60
  4. Step 4: Simplify right side
    89,052.80x = 4,871,915,321.82
  5. Step 5: Solve for x
    x = 4,871,915,321.82/89,052.80
  6. Step 6: Final answer
    x = 54,708.17

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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.