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Finding the Fourth Proportional to 322,679.55, 484,000.87 and 123,020.12

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Solution

The fourth proportional to 322,679.55, 484,000.87 and 123,020.12 is: 184,523.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,679.55 : 484,000.87 = 123,020.12 : x
  2. Step 2: Convert to fraction form
    322,679.55/484,000.87 = 123,020.12/x
  3. Step 3: Cross multiply
    322,679.55x = 484,000.87 × 123,020.12
  4. Step 4: Simplify right side
    322,679.55x = 59,541,843,518.11
  5. Step 5: Solve for x
    x = 59,541,843,518.11/322,679.55
  6. Step 6: Final answer
    x = 184,523.14

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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.