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Finding the Fourth Proportional to 321,736.70, 482,662.65 and 134,767.10

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Solution

The fourth proportional to 321,736.70, 482,662.65 and 134,767.10 is: 202,174.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,736.70 : 482,662.65 = 134,767.10 : x
  2. Step 2: Convert to fraction form
    321,736.70/482,662.65 = 134,767.10/x
  3. Step 3: Cross multiply
    321,736.70x = 482,662.65 × 134,767.10
  4. Step 4: Simplify right side
    321,736.70x = 65,047,045,618.82
  5. Step 5: Solve for x
    x = 65,047,045,618.82/321,736.70
  6. Step 6: Final answer
    x = 202,174.78

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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.