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Finding the Fourth Proportional to 322,563.06, 483,895.62 and 85,924.80

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Solution

The fourth proportional to 322,563.06, 483,895.62 and 85,924.80 is: 128,900.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,563.06 : 483,895.62 = 85,924.80 : x
  2. Step 2: Convert to fraction form
    322,563.06/483,895.62 = 85,924.80/x
  3. Step 3: Cross multiply
    322,563.06x = 483,895.62 × 85,924.80
  4. Step 4: Simplify right side
    322,563.06x = 41,578,634,369.38
  5. Step 5: Solve for x
    x = 41,578,634,369.38/322,563.06
  6. Step 6: Final answer
    x = 128,900.79

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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.