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Finding the Fourth Proportional to 235,443.36, 352,691.60 and 108,905.97

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Solution

The fourth proportional to 235,443.36, 352,691.60 and 108,905.97 is: 163,139.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,443.36 : 352,691.60 = 108,905.97 : x
  2. Step 2: Convert to fraction form
    235,443.36/352,691.60 = 108,905.97/x
  3. Step 3: Cross multiply
    235,443.36x = 352,691.60 × 108,905.97
  4. Step 4: Simplify right side
    235,443.36x = 38,410,220,264.32
  5. Step 5: Solve for x
    x = 38,410,220,264.32/235,443.36
  6. Step 6: Final answer
    x = 163,139.96

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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.