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Finding the Fourth Proportional to 416,624.34, 624,968.91 and 136,169.94

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Solution

The fourth proportional to 416,624.34, 624,968.91 and 136,169.94 is: 204,265.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,624.34 : 624,968.91 = 136,169.94 : x
  2. Step 2: Convert to fraction form
    416,624.34/624,968.91 = 136,169.94/x
  3. Step 3: Cross multiply
    416,624.34x = 624,968.91 × 136,169.94
  4. Step 4: Simplify right side
    416,624.34x = 85,101,978,976.57
  5. Step 5: Solve for x
    x = 85,101,978,976.57/416,624.34
  6. Step 6: Final answer
    x = 204,265.50

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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.