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Finding the Fourth Proportional to 220,680.60, 330,761.68 and 102,101.48

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Solution

The fourth proportional to 220,680.60, 330,761.68 and 102,101.48 is: 153,032.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,680.60 : 330,761.68 = 102,101.48 : x
  2. Step 2: Convert to fraction form
    220,680.60/330,761.68 = 102,101.48/x
  3. Step 3: Cross multiply
    220,680.60x = 330,761.68 × 102,101.48
  4. Step 4: Simplify right side
    220,680.60x = 33,771,257,055.29
  5. Step 5: Solve for x
    x = 33,771,257,055.29/220,680.60
  6. Step 6: Final answer
    x = 153,032.29

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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.