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Finding the Fourth Proportional to 103,480.60, 155,247.90 and 33,361.60

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Solution

The fourth proportional to 103,480.60, 155,247.90 and 33,361.60 is: 50,051.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,480.60 : 155,247.90 = 33,361.60 : x
  2. Step 2: Convert to fraction form
    103,480.60/155,247.90 = 33,361.60/x
  3. Step 3: Cross multiply
    103,480.60x = 155,247.90 × 33,361.60
  4. Step 4: Simplify right side
    103,480.60x = 5,179,318,340.64
  5. Step 5: Solve for x
    x = 5,179,318,340.64/103,480.60
  6. Step 6: Final answer
    x = 50,051.10

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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.