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Finding the Fourth Proportional to 416,626.59, 624,972.30 and 136,172.19

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Solution

The fourth proportional to 416,626.59, 624,972.30 and 136,172.19 is: 204,268.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,626.59 : 624,972.30 = 136,172.19 : x
  2. Step 2: Convert to fraction form
    416,626.59/624,972.30 = 136,172.19/x
  3. Step 3: Cross multiply
    416,626.59x = 624,972.30 × 136,172.19
  4. Step 4: Simplify right side
    416,626.59x = 85,103,846,780.34
  5. Step 5: Solve for x
    x = 85,103,846,780.34/416,626.59
  6. Step 6: Final answer
    x = 204,268.88

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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.