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Finding the Fourth Proportional to 239,043, 329,879.34 and 133,059

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Solution

The fourth proportional to 239,043, 329,879.34 and 133,059 is: 183,621.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,043 : 329,879.34 = 133,059 : x
  2. Step 2: Convert to fraction form
    239,043/329,879.34 = 133,059/x
  3. Step 3: Cross multiply
    239,043x = 329,879.34 × 133,059
  4. Step 4: Simplify right side
    239,043x = 43,893,415,101.06
  5. Step 5: Solve for x
    x = 43,893,415,101.06/239,043
  6. Step 6: Final answer
    x = 183,621.42

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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.