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Finding the Fourth Proportional to 235,385.21, 352,995.99 and 100,443.83

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Solution

The fourth proportional to 235,385.21, 352,995.99 and 100,443.83 is: 150,630.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,385.21 : 352,995.99 = 100,443.83 : x
  2. Step 2: Convert to fraction form
    235,385.21/352,995.99 = 100,443.83/x
  3. Step 3: Cross multiply
    235,385.21x = 352,995.99 × 100,443.83
  4. Step 4: Simplify right side
    235,385.21x = 35,456,267,445.26
  5. Step 5: Solve for x
    x = 35,456,267,445.26/235,385.21
  6. Step 6: Final answer
    x = 150,630.82

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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.