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Finding the Fourth Proportional to 91,853.85, 137,789.49 and 35,698.30

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Solution

The fourth proportional to 91,853.85, 137,789.49 and 35,698.30 is: 53,550.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,853.85 : 137,789.49 = 35,698.30 : x
  2. Step 2: Convert to fraction form
    91,853.85/137,789.49 = 35,698.30/x
  3. Step 3: Cross multiply
    91,853.85x = 137,789.49 × 35,698.30
  4. Step 4: Simplify right side
    91,853.85x = 4,918,850,340.26
  5. Step 5: Solve for x
    x = 4,918,850,340.26/91,853.85
  6. Step 6: Final answer
    x = 53,550.83

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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.