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Finding the Fourth Proportional to 336,855.10, 464,843.70 and 191,647.21

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Solution

The fourth proportional to 336,855.10, 464,843.70 and 191,647.21 is: 264,463.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,855.10 : 464,843.70 = 191,647.21 : x
  2. Step 2: Convert to fraction form
    336,855.10/464,843.70 = 191,647.21/x
  3. Step 3: Cross multiply
    336,855.10x = 464,843.70 × 191,647.21
  4. Step 4: Simplify right side
    336,855.10x = 89,085,998,191.08
  5. Step 5: Solve for x
    x = 89,085,998,191.08/336,855.10
  6. Step 6: Final answer
    x = 264,463.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.