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Finding the Fourth Proportional to 416,244.49, 624,384.15 and 131,928.82

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Solution

The fourth proportional to 416,244.49, 624,384.15 and 131,928.82 is: 197,898.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    416,244.49 : 624,384.15 = 131,928.82 : x
  2. Step 2: Convert to fraction form
    416,244.49/624,384.15 = 131,928.82/x
  3. Step 3: Cross multiply
    416,244.49x = 624,384.15 × 131,928.82
  4. Step 4: Simplify right side
    416,244.49x = 82,374,264,136.20
  5. Step 5: Solve for x
    x = 82,374,264,136.20/416,244.49
  6. Step 6: Final answer
    x = 197,898.75

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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.