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Finding the Fourth Proportional to 235,553.66, 353,285.43 and 91,459.49

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Solution

The fourth proportional to 235,553.66, 353,285.43 and 91,459.49 is: 137,171.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    235,553.66 : 353,285.43 = 91,459.49 : x
  2. Step 2: Convert to fraction form
    235,553.66/353,285.43 = 91,459.49/x
  3. Step 3: Cross multiply
    235,553.66x = 353,285.43 × 91,459.49
  4. Step 4: Simplify right side
    235,553.66x = 32,311,304,467.65
  5. Step 5: Solve for x
    x = 32,311,304,467.65/235,553.66
  6. Step 6: Final answer
    x = 137,171.73

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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.