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Finding the Fourth Proportional to 89,596.80, 134,200.80 and 74,044.80

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Solution

The fourth proportional to 89,596.80, 134,200.80 and 74,044.80 is: 110,906.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    89,596.80 : 134,200.80 = 74,044.80 : x
  2. Step 2: Convert to fraction form
    89,596.80/134,200.80 = 74,044.80/x
  3. Step 3: Cross multiply
    89,596.80x = 134,200.80 × 74,044.80
  4. Step 4: Simplify right side
    89,596.80x = 9,936,871,395.84
  5. Step 5: Solve for x
    x = 9,936,871,395.84/89,596.80
  6. Step 6: Final answer
    x = 110,906.54

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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.