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Finding the Fourth Proportional to 322,951.12, 484,429.11 and 123,217.81

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Solution

The fourth proportional to 322,951.12, 484,429.11 and 123,217.81 is: 184,827.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,951.12 : 484,429.11 = 123,217.81 : x
  2. Step 2: Convert to fraction form
    322,951.12/484,429.11 = 123,217.81/x
  3. Step 3: Cross multiply
    322,951.12x = 484,429.11 × 123,217.81
  4. Step 4: Simplify right side
    322,951.12x = 59,690,294,034.45
  5. Step 5: Solve for x
    x = 59,690,294,034.45/322,951.12
  6. Step 6: Final answer
    x = 184,827.64

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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.