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Finding the Fourth Proportional to 357,884.80, 536,825.85 and 91,644.96

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Solution

The fourth proportional to 357,884.80, 536,825.85 and 91,644.96 is: 137,467.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,884.80 : 536,825.85 = 91,644.96 : x
  2. Step 2: Convert to fraction form
    357,884.80/536,825.85 = 91,644.96/x
  3. Step 3: Cross multiply
    357,884.80x = 536,825.85 × 91,644.96
  4. Step 4: Simplify right side
    357,884.80x = 49,197,383,550.22
  5. Step 5: Solve for x
    x = 49,197,383,550.22/357,884.80
  6. Step 6: Final answer
    x = 137,467.09

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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.