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Finding the Fourth Proportional to 352,384.80, 528,109.20 and 192,049.08

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Solution

The fourth proportional to 352,384.80, 528,109.20 and 192,049.08 is: 287,818.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,384.80 : 528,109.20 = 192,049.08 : x
  2. Step 2: Convert to fraction form
    352,384.80/528,109.20 = 192,049.08/x
  3. Step 3: Cross multiply
    352,384.80x = 528,109.20 × 192,049.08
  4. Step 4: Simplify right side
    352,384.80x = 101,422,885,999.54
  5. Step 5: Solve for x
    x = 101,422,885,999.54/352,384.80
  6. Step 6: Final answer
    x = 287,818.56

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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.