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Finding the Fourth Proportional to 320,900.67, 481,424.84 and 107,696.88

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Solution

The fourth proportional to 320,900.67, 481,424.84 and 107,696.88 is: 161,570.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,900.67 : 481,424.84 = 107,696.88 : x
  2. Step 2: Convert to fraction form
    320,900.67/481,424.84 = 107,696.88/x
  3. Step 3: Cross multiply
    320,900.67x = 481,424.84 × 107,696.88
  4. Step 4: Simplify right side
    320,900.67x = 51,847,952,684.01
  5. Step 5: Solve for x
    x = 51,847,952,684.01/320,900.67
  6. Step 6: Final answer
    x = 161,570.10

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1.5x scale

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.