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Finding the Fourth Proportional to 352,067.78, 528,200.10 and 115,576.54

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Solution

The fourth proportional to 352,067.78, 528,200.10 and 115,576.54 is: 173,397.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    352,067.78 : 528,200.10 = 115,576.54 : x
  2. Step 2: Convert to fraction form
    352,067.78/528,200.10 = 115,576.54/x
  3. Step 3: Cross multiply
    352,067.78x = 528,200.10 × 115,576.54
  4. Step 4: Simplify right side
    352,067.78x = 61,047,538,665.15
  5. Step 5: Solve for x
    x = 61,047,538,665.15/352,067.78
  6. Step 6: Final answer
    x = 173,397.12

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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.