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Finding the Fourth Proportional to 352,596.20, 528,840.30 and 115,939.40

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Solution

The fourth proportional to 352,596.20, 528,840.30 and 115,939.40 is: 173,891.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,596.20 : 528,840.30 = 115,939.40 : x
  2. Step 2: Convert to fraction form
    352,596.20/528,840.30 = 115,939.40/x
  3. Step 3: Cross multiply
    352,596.20x = 528,840.30 × 115,939.40
  4. Step 4: Simplify right side
    352,596.20x = 61,313,427,077.82
  5. Step 5: Solve for x
    x = 61,313,427,077.82/352,596.20
  6. Step 6: Final answer
    x = 173,891.34

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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.