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Finding the Fourth Proportional to 222,648.76, 307,252.94 and 122,046.20

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Solution

The fourth proportional to 222,648.76, 307,252.94 and 122,046.20 is: 168,422.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,648.76 : 307,252.94 = 122,046.20 : x
  2. Step 2: Convert to fraction form
    222,648.76/307,252.94 = 122,046.20/x
  3. Step 3: Cross multiply
    222,648.76x = 307,252.94 × 122,046.20
  4. Step 4: Simplify right side
    222,648.76x = 37,499,053,765.83
  5. Step 5: Solve for x
    x = 37,499,053,765.83/222,648.76
  6. Step 6: Final answer
    x = 168,422.47

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1.5x scale

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.