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Finding the Fourth Proportional to 84,991.92, 127,371.24 and 43,351.44

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Solution

The fourth proportional to 84,991.92, 127,371.24 and 43,351.44 is: 64,967.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,991.92 : 127,371.24 = 43,351.44 : x
  2. Step 2: Convert to fraction form
    84,991.92/127,371.24 = 43,351.44/x
  3. Step 3: Cross multiply
    84,991.92x = 127,371.24 × 43,351.44
  4. Step 4: Simplify right side
    84,991.92x = 5,521,726,668.59
  5. Step 5: Solve for x
    x = 5,521,726,668.59/84,991.92
  6. Step 6: Final answer
    x = 64,967.67

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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.