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Finding the Fourth Proportional to 136,571.54, 204,857.40 and 43,084.58

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Solution

The fourth proportional to 136,571.54, 204,857.40 and 43,084.58 is: 64,626.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    136,571.54 : 204,857.40 = 43,084.58 : x
  2. Step 2: Convert to fraction form
    136,571.54/204,857.40 = 43,084.58/x
  3. Step 3: Cross multiply
    136,571.54x = 204,857.40 × 43,084.58
  4. Step 4: Simplify right side
    136,571.54x = 8,826,195,038.89
  5. Step 5: Solve for x
    x = 8,826,195,038.89/136,571.54
  6. Step 6: Final answer
    x = 64,626.90

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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.