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Finding the Fourth Proportional to 424,187.64, 636,183.06 and 187,401.24

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Solution

The fourth proportional to 424,187.64, 636,183.06 and 187,401.24 is: 281,058.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,187.64 : 636,183.06 = 187,401.24 : x
  2. Step 2: Convert to fraction form
    424,187.64/636,183.06 = 187,401.24/x
  3. Step 3: Cross multiply
    424,187.64x = 636,183.06 × 187,401.24
  4. Step 4: Simplify right side
    424,187.64x = 119,221,494,310.99
  5. Step 5: Solve for x
    x = 119,221,494,310.99/424,187.64
  6. Step 6: Final answer
    x = 281,058.39

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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.