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Finding the Fourth Proportional to 352,550.22, 528,757.65 and 99,769.65

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Solution

The fourth proportional to 352,550.22, 528,757.65 and 99,769.65 is: 149,635.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,550.22 : 528,757.65 = 99,769.65 : x
  2. Step 2: Convert to fraction form
    352,550.22/528,757.65 = 99,769.65/x
  3. Step 3: Cross multiply
    352,550.22x = 528,757.65 × 99,769.65
  4. Step 4: Simplify right side
    352,550.22x = 52,753,965,675.32
  5. Step 5: Solve for x
    x = 52,753,965,675.32/352,550.22
  6. Step 6: Final answer
    x = 149,635.32

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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.