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Finding the Fourth Proportional to 352,003.20, 527,227.20 and 141,532.80

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Solution

The fourth proportional to 352,003.20, 527,227.20 and 141,532.80 is: 211,986.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,003.20 : 527,227.20 = 141,532.80 : x
  2. Step 2: Convert to fraction form
    352,003.20/527,227.20 = 141,532.80/x
  3. Step 3: Cross multiply
    352,003.20x = 527,227.20 × 141,532.80
  4. Step 4: Simplify right side
    352,003.20x = 74,619,941,852.16
  5. Step 5: Solve for x
    x = 74,619,941,852.16/352,003.20
  6. Step 6: Final answer
    x = 211,986.54

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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.