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Finding the Fourth Proportional to 220,628.52, 330,712.38 and 108,153

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Solution

The fourth proportional to 220,628.52, 330,712.38 and 108,153 is: 162,116.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,628.52 : 330,712.38 = 108,153 : x
  2. Step 2: Convert to fraction form
    220,628.52/330,712.38 = 108,153/x
  3. Step 3: Cross multiply
    220,628.52x = 330,712.38 × 108,153
  4. Step 4: Simplify right side
    220,628.52x = 35,767,536,034.14
  5. Step 5: Solve for x
    x = 35,767,536,034.14/220,628.52
  6. Step 6: Final answer
    x = 162,116.56

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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.