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Finding the Fourth Proportional to 103,662.45, 155,493.68 and 33,548.85

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Solution

The fourth proportional to 103,662.45, 155,493.68 and 33,548.85 is: 50,323.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,662.45 : 155,493.68 = 33,548.85 : x
  2. Step 2: Convert to fraction form
    103,662.45/155,493.68 = 33,548.85/x
  3. Step 3: Cross multiply
    103,662.45x = 155,493.68 × 33,548.85
  4. Step 4: Simplify right side
    103,662.45x = 5,216,633,978.52
  5. Step 5: Solve for x
    x = 5,216,633,978.52/103,662.45
  6. Step 6: Final answer
    x = 50,323.28

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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.