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Finding the Fourth Proportional to 104,660.80, 157,027.65 and 45,538.90

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Solution

The fourth proportional to 104,660.80, 157,027.65 and 45,538.90 is: 68,324.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,660.80 : 157,027.65 = 45,538.90 : x
  2. Step 2: Convert to fraction form
    104,660.80/157,027.65 = 45,538.90/x
  3. Step 3: Cross multiply
    104,660.80x = 157,027.65 × 45,538.90
  4. Step 4: Simplify right side
    104,660.80x = 7,150,866,450.59
  5. Step 5: Solve for x
    x = 7,150,866,450.59/104,660.80
  6. Step 6: Final answer
    x = 68,324.21

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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.