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Finding the Fourth Proportional to 88,912.77, 133,391.94 and 75,446.78

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Solution

The fourth proportional to 88,912.77, 133,391.94 and 75,446.78 is: 113,189.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,912.77 : 133,391.94 = 75,446.78 : x
  2. Step 2: Convert to fraction form
    88,912.77/133,391.94 = 75,446.78/x
  3. Step 3: Cross multiply
    88,912.77x = 133,391.94 × 75,446.78
  4. Step 4: Simplify right side
    88,912.77x = 10,063,991,683.99
  5. Step 5: Solve for x
    x = 10,063,991,683.99/88,912.77
  6. Step 6: Final answer
    x = 113,189.50

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1.5x scale

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.