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Finding the Fourth Proportional to 222,972.75, 307,702.61 and 127,481.45

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Solution

The fourth proportional to 222,972.75, 307,702.61 and 127,481.45 is: 175,924.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,972.75 : 307,702.61 = 127,481.45 : x
  2. Step 2: Convert to fraction form
    222,972.75/307,702.61 = 127,481.45/x
  3. Step 3: Cross multiply
    222,972.75x = 307,702.61 × 127,481.45
  4. Step 4: Simplify right side
    222,972.75x = 39,226,374,586.63
  5. Step 5: Solve for x
    x = 39,226,374,586.63/222,972.75
  6. Step 6: Final answer
    x = 175,924.52

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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.