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Finding the Fourth Proportional to 103,658.45, 155,487.68 and 33,544.85

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Solution

The fourth proportional to 103,658.45, 155,487.68 and 33,544.85 is: 50,317.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,658.45 : 155,487.68 = 33,544.85 : x
  2. Step 2: Convert to fraction form
    103,658.45/155,487.68 = 33,544.85/x
  3. Step 3: Cross multiply
    103,658.45x = 155,487.68 × 33,544.85
  4. Step 4: Simplify right side
    103,658.45x = 5,215,810,902.45
  5. Step 5: Solve for x
    x = 5,215,810,902.45/103,658.45
  6. Step 6: Final answer
    x = 50,317.28

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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.