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Finding the Fourth Proportional to 322,813.35, 484,216.02 and 145,194.93

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Solution

The fourth proportional to 322,813.35, 484,216.02 and 145,194.93 is: 217,790.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    322,813.35 : 484,216.02 = 145,194.93 : x
  2. Step 2: Convert to fraction form
    322,813.35/484,216.02 = 145,194.93/x
  3. Step 3: Cross multiply
    322,813.35x = 484,216.02 × 145,194.93
  4. Step 4: Simplify right side
    322,813.35x = 70,305,711,128.78
  5. Step 5: Solve for x
    x = 70,305,711,128.78/322,813.35
  6. Step 6: Final answer
    x = 217,790.59

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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.