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Finding the Fourth Proportional to 222,467.76, 307,002.60 and 121,866.48

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Solution

The fourth proportional to 222,467.76, 307,002.60 and 121,866.48 is: 168,174.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,467.76 : 307,002.60 = 121,866.48 : x
  2. Step 2: Convert to fraction form
    222,467.76/307,002.60 = 121,866.48/x
  3. Step 3: Cross multiply
    222,467.76x = 307,002.60 × 121,866.48
  4. Step 4: Simplify right side
    222,467.76x = 37,413,326,212.85
  5. Step 5: Solve for x
    x = 37,413,326,212.85/222,467.76
  6. Step 6: Final answer
    x = 168,174.15

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.